installer: add version information on BDB

[GitMensch]

I really like the new installer and the separate distribution of the GnuCOBOL binaries.
Ideally it would be possible to download these separately to not need an internet connection during installation (maybe should moved out to a separate issue...)

What I did recognize is that the binary selection:

Does not specify the BDB version; as newer BDB versions are all under AGPL it makes a huge difference if this or an older version is used.

Note: since GnuCOBOL 3.1.2 you can execute cobcrun -vV (--verbose --version) to get a summary line of what is used, execution results on some connected machines:

GnuCOBOL 3.1.2 (Oct 02 2022 16:41:13), "10.2.1 20210110"
GMP 6.2.1, libxml2 2.9.10, cJSON 1.7.14, ncursesw 6.2.20201114, BDB 5.3.28

GnuCOBOL 3.2.0 (Oct 21 2022 16:22:36), "8.5.0 20210514 (Red Hat 8.5.0-4)"
GMP 6.1.2, ncursesw 6.1.20180224

GnuCOBOL 3.2.0 (Sep 10 2022 13:51:54), (MinGW) "12.2.0"
GMP 6.2.1, libxml2 2.9.14, cJSON 1.7.15, PDCursesMod 4.3.4, BDB 6.0.19

GnuCOBOL 3.2.0 (Nov 03 2022 21:54:02), (Microsoft) 1933
MPIR 3.0.0, PDCurses 3.9 (3900)

[mridoni]

Since this is a possible license problem, and to avoid misunderstandings, as a quick (and admittedly ugly) fix I have added only for BDB the version number in the "index" file used by Gix-IDE when it downloads the compilers, it will show on the compiler selection page of the installer. I plan to also add version number for the other components.

mridoni/gnucobol-binaries@ab58b73