Fix Ashford

There are two Ashford stations. Both are called Ashford International but
one is for national rail services (CRS AFK, as in AshFord Kent) and one is
for international rail services (CRS ASI AShford International). Various
mix-up occured in the data.

- 7968 was probably intended to be the international services station.
  Adding the proper SNCF code to it. Removing the same_as column and add the
  CRS code for it.
- 8154 is the meta station. It has ATOC group code 386. SNCF knows it by
  code GBASD.
- 8155 was intended to be Ashford International *national* services,
  guessing from the normalised code. It has CRS code AFK and SNCF code GBAJC.
- 22673 was deleted. It has a same_as, generally indicating a
  misunderstanding of the subtelties. It did not contain meaningful
  information.

Also
- remove DB and Bene ids on Ashford as they're not served by these
carriers and until the situation is made clearer
- add the remaining normalised codes corresponding to each station / group

Finally, there is some confusion in the UIC data and the NLOCs, did my best
to collate the data.

stations.csv

@@ -6344,7 +6344,7 @@ id;name;slug;uic;uic8_sncf;latitude;longitude;parent_station_id;country;time_zon
 7965;Worcester Foregate Street;worcester-foregate-street;7048930;70489302;52.194801;-2.220885;26815;GB;Europe/London;f;t;f;t;f;f;GBAIZ;;f;;f;7002348;f;;f;;f;;f;;f;;f;;f;;f;;f;;;;;f;;f;;f;WOF;t;GBAIZ;f;;f;f;;;;;;;;;;;;ウスター;우스터;;;Вустер;;;伍斯特;urn:trainline:public:nloc:at001068;
 7966;Whimple;whimple;7057590;70575902;50.768253;-3.354243;;GB;Europe/London;f;f;f;t;f;f;GBAJA;;f;;f;7002389;f;;f;;f;;f;;f;;f;;f;;f;;f;;;;;f;;f;;f;WHM;t;GBAJA;f;;f;f;;;;;;;;;;;;;;;;;;;;urn:trainline:public:nloc:at002778;
 7967;Andover;andover;7055100;70551002;51.212048;-1.493167;;GB;Europe/London;f;f;f;t;f;f;GBAJB;;f;;f;7000079;f;;f;;f;;f;;f;;f;;f;;f;;f;;;;;f;;f;;f;ADV;t;GBAJB;f;;f;f;;;;;;;;;;;;アンドーヴァー;앤도버;;;Андовер;;;;urn:trainline:public:nloc:at000071;
-7968;Ashford International;ashford-international;;;51.143434;0.875153;8154;GB;Europe/London;f;f;f;f;f;f;GBAJC;;f;;f;7000107;f;;f;;f;;f;;f;;f;;f;;f;;f;;;;;f;;f;;f;;f;GBAJC;f;;f;f;8155;;;;;;;;;;;;;;;;;;;;
+7968;Ashford International;ashford-international;7054660;70546606;51.142943;0.874444;8154;GB;Europe/London;f;f;f;f;f;f;GBASI;;f;;f;;f;;f;;f;;f;;f;;f;;f;;f;;f;;;;;f;;f;;f;ASI;f;;f;;f;f;;;;;;;;;;;;;;;;;;;;urn:trainline:public:nloc:at005476;
 7969;Harlech;harlech;7044580;70445809;52.861309;-4.109248;;GB;Europe/London;f;f;f;t;f;f;GBAJD;;f;;f;7001126;f;;f;;f;;f;;f;;f;;f;;f;;f;;;;;f;;f;;f;HRL;t;GBAJD;f;;f;f;;;;;;;;;;;;ハーレック;;;;;;;;urn:trainline:public:nloc:at001254;
 7970;Tisbury;tisbury;7057980;70579805;51.060257;-2.078456;;GB;Europe/London;f;f;f;t;f;f;GBAJE;;f;;f;7002241;f;;f;;f;;f;;f;;f;;f;;f;;f;;;;;f;;f;;f;TIS;t;GBAJE;f;;f;f;;;;;;;;;;;;;;;;;;;;urn:trainline:public:nloc:at002602;
 7971;Minffordd;minffordd;7044690;70446906;52.926464;-4.085625;;GB;Europe/London;f;f;f;t;f;f;GBAJF;;f;;f;7001493;f;;f;;f;;f;;f;;f;;f;;f;;f;;;;;f;;f;;f;MFF;t;GBAJF;f;;f;f;;;;;;;;;;;;;;;;;;;;urn:trainline:public:nloc:at001831;
@@ -6530,8 +6530,8 @@ id;name;slug;uic;uic8_sncf;latitude;longitude;parent_station_id;country;time_zon
 8151;Tunbridge Wells;tunbridge-wells;7052300;70523001;51.130119;0.262435;;GB;Europe/London;f;f;f;t;f;f;GBAQG;;f;;f;7002209;f;;f;;f;;f;;f;;f;;f;;f;;f;;;;;f;;f;;f;TBW;t;GBAQG;f;;f;f;;;;;;;;;;;;;;;;;;;皇家唐橋井;urn:trainline:public:nloc:at002638;
 8152;Belfast Central;belfast-central;;;54.5953;-5.9172;;GB;Europe/London;f;f;f;t;f;f;;;f;;f;;f;;f;;f;;f;;f;;f;;f;;f;;f;;;;;f;;f;;f;BFC;t;;f;;f;f;;;;;;;;;;;;ベルファスト;벨파스트;;;Белфаст;;;貝爾法斯特;urn:trainline:public:nloc:at000246;
 8153;Arbroath;arbroath;7090790;70907907;56.559628;-2.588928;;GB;Europe/London;f;f;f;t;f;f;GBARB;;f;;f;7000087;f;;f;;f;;f;;f;;f;;f;;f;;f;;;;;f;;f;;f;ARB;t;GBARB;f;;f;f;;;;;;;;;;;;;;;;Арброт;;;阿布羅斯;urn:trainline:public:nloc:at000086;
-8154;Ashford;ashford;7070512;70705129;;;;GB;Europe/London;t;f;f;f;f;f;GBASD;;f;;f;;f;;f;;f;;f;;f;;f;;f;;f;;f;;;;;f;;f;;f;;f;;f;;f;f;;;;;;;;;;;;;애슈퍼드;;;Эшфорд;;;阿什福德;;
-8155;Ashford International;ashford-international;7054660;70546606;51.143353;0.875167;8154;GB;Europe/London;f;t;f;t;f;f;GBASI;;f;;f;7098107;f;;f;;f;;f;;f;;f;;f;;f;;f;;;;;f;;f;7000512;f;AFK;t;GBASI;f;;f;f;;;;;;;;;;;;;;;;;;;;urn:trainline:public:nloc:at000113;
+8154;Ashford;ashford;;;51.14334;0.87516;;GB;Europe/London;t;f;f;f;f;f;GBASD;;f;;f;;f;;f;;f;;f;;f;;f;;f;;f;;f;;;;;f;;f;;f;386;f;;f;;f;f;;;;;;;;;;;;;애슈퍼드;;;Эшфорд;;;阿什福德;urn:trainline:public:nloc:at000115;
+8155;Ashford International;ashford-international;7050040;70500405;51.143785;0.876446;8154;GB;Europe/London;f;t;f;t;f;f;GBAJC;;f;;f;;f;;f;;f;;f;;f;;f;;f;;f;;f;;;;;f;;f;;f;AFK;t;;f;;f;f;;;;;;;;;;;;;;;;;;;;urn:trainline:public:nloc:at000113;
 8156;Aberystwyth;aberystwyth;7043030;70430306;52.414017;-4.081946;;GB;Europe/London;f;f;f;t;f;f;GBAWY;;f;;f;7000021;f;;f;;f;;f;;f;;f;;f;;f;;f;;;;;f;;f;;f;AYW;t;GBAWY;f;;f;f;;;;;;;;;;;;アベリストウィス;에버리스트위스;;;Аберистуит;;;阿伯里斯特威斯;urn:trainline:public:nloc:at000014;
 8157;London St-Pancras;london-st-pancras;7015550;70155507;51.531831;-0.126747;8267;GB;Europe/London;f;f;f;f;f;f;GBBAA;;f;;f;7001424;f;;f;;f;;f;;f;;f;;f;;f;;f;;;;;f;;f;;f;;f;;f;;f;f;5892;;;;;;;;;;;;;;;;;;;;
 8158;Tilbury Town;tilbury-town;7074620;70746206;51.462879;0.353724;26797;GB;Europe/London;f;t;f;t;f;f;GBBAB;;f;;f;7002236;f;;f;;f;;f;;f;;f;;f;;f;;f;;;;;f;;f;;f;TIL;t;;f;;f;f;;;;;;;;;;;;;;;;;;;;urn:trainline:public:nloc:at002596;
@@ -20658,7 +20658,6 @@ id;name;slug;uic;uic8_sncf;latitude;longitude;parent_station_id;country;time_zon
 22670;Hannover Hbf;hannover-hbf;;;;;;DE;Europe/Berlin;f;f;f;f;f;f;;;f;;f;;f;;f;;f;;f;;f;;f;;f;;f;;f;;;;;f;;f;;f;;f;;f;;f;f;6921;;;;;;;;;;;;;;;;;;;urn:trainline:public:nloc:csv6921;
 22671;Torino Porta Susa;torino-porta-susa;;;;;;IT;Europe/Rome;f;f;f;f;f;f;;;f;;f;;f;;f;;f;;f;;f;;f;;f;;f;;f;;;;;f;;f;;f;;f;;f;;f;f;8568;;;;;;;;;;;;;;;;;;;urn:trainline:public:nloc:csv8568;
 22672;Torino Porta Susa;torino-porta-susa;;;;;;IT;Europe/Rome;f;f;f;f;f;f;;;f;;f;;f;;f;;f;;f;;f;;f;;f;;f;;f;;;;;f;;f;;f;;f;;f;;f;f;8568;;;;;;;;;;;;;;;;;;;urn:trainline:public:nloc:csv8568;
-22673;Ashford International;ashford-international;7050040;70500405;51.143673;0.873628;;GB;Europe/London;f;f;f;f;f;f;;;f;;f;;f;;f;;f;;f;;f;;f;;f;;f;;f;;;;;f;;f;;f;;f;;f;;f;f;8155;;;;;;;;;;;;;;;;;;;;
 22674;Ebbsfleet International;ebbsfleet-international;7055660;70556605;51.442961;0.320921;;GB;Europe/London;f;f;f;f;f;f;;;f;;f;7004712;f;;f;;f;;f;;f;;f;;f;;f;;f;;;;;f;;f;;f;;f;;f;;f;f;8224;;;;;;;;;;;;;;;;;;;;
 22675;Tübingen Hbf;tubingen-hbf;;;;;;DE;Europe/Berlin;f;f;f;f;f;f;;;f;;f;;f;;f;;f;;f;;f;;f;;f;;f;;f;;;;;f;;f;;f;;f;;f;;f;f;7343;;;Tubinga;;Tubinga;;;;;;テュービンゲン;튀빙겐;Tybinga;Tubinga;Тюбинген;;;蒂宾根;urn:trainline:public:nloc:csv7343;
 22676;Zaragoza Delicias;zaragoza-delicias;7104040;71040402;41.658439;-0.909906;24575;ES;Europe/Madrid;f;t;f;t;f;f;ESZAA;;t;;f;7175506;f;;f;;f;;f;;f;;f;;f;ESZAA;t;;f;;;;;f;;f;04040;t;;f;ESZAD;f;;f;f;;Saragossa;;;Saragosse;Saragozza;;;;;;サラゴサ;사라고사;Saragossa;Saragoça;;;;萨拉戈萨;urn:trainline:public:nloc:csv22676;

test_data.rb

@@ -575,7 +575,7 @@ def test_normalised_code
         end
       end
     end
-    assert_equal(29, gb_stations_without_normalised_codes.length, "There should be 29 GB stations without a normalised code")
+    assert_equal(26, gb_stations_without_normalised_codes.length, "There should be 26 GB stations without a normalised code")
   end
 
   # [TEMP] To be removed