CAN spec patches (#218)

* Message 0x18FF50E5 (Charger Box Status) now byte aligned. Changed unused from 24 to 27 bits.

* Changed sim frequencies in MPU/State/Mode and MPU/State/ModeIndex to add to 1. Mode option 1 from 0.80 to 0.79, and ModeIndex option 2 from 0.40 to 0.20.

* Sim option 4 frequency of MPU/State/Mode changed from 0.00 to 0.01

cangen/can-messages/charger.json

@@ -218,10 +218,10 @@
         "send": false,
         "points": [
           {
-            "size": 24
+            "size": 27
           }
         ]
       }
     ]
   }
-]
+]

cangen/can-messages/mpu.json

@@ -15,7 +15,7 @@
             ],
             [
               1,
-              0.80
+              0.78
             ],
             [
               2,
@@ -27,7 +27,7 @@
             ],
             [
               4,
-              0.00
+              0.01
             ]
           ]
         },
@@ -52,7 +52,7 @@
             ],
             [
               2,
-              0.40
+              0.20
             ],
             [
               3,
@@ -370,8 +370,7 @@
         },
         "points": [
           {
-            "size": 8,
-            "endianness": "little"
+            "size": 8
           }
         ]
       }