Compat GM - Fix inheritance and add GM stringtable entries to display names

[lambdatiger]

When merged this pull request will:

• This PR fixes addresses an inheritance break in the previous version
• Changes display names to GM's localization strings.

IMPORTANT

• If the contribution affects the documentation, please include your changes in this pull request so the documentation will appear on the website.
• Development Guidelines are read, understood and applied.
• Title of this PR uses our standard template Component - Add|Fix|Improve|Change|Make|Remove {changes}.

[lambdatiger]

https://github.com/lambdatiger/ace_frag-overhaul/blob/678ca56d7b7f4bc51cfd2bd8940fa5b5605342f4/addons/compat_gm/CfgVehicles.hpp#L131
Something I'd be interested in including is changing half of these to the 5.45x39 ammo box as most GM NVA units use 5.45 for their rifles and 7.62 being for automatic rifles and border guards. Although maybe that comes to a separate PR

[lambdatiger]

Sorry, one of my formatting check scripts added the backslashes that aren't needed/don't reflect the original

[johnb432]

https://github.com/lambdatiger/ace_frag-overhaul/blob/678ca56d7b7f4bc51cfd2bd8940fa5b5605342f4/addons/compat_gm/CfgVehicles.hpp#L131 Something I'd be interested in including is changing half of these to the 5.45x39 ammo box as most GM NVA units use 5.45 for their rifles and 7.62 being for automatic rifles and border guards. Although maybe that comes to a separate PR

This isn't the proper place to discuss it, but the reason why I added those is because the box specifically has M43 printed on it, which is 7.62x39.