Made it so group settings are only used if radio is default side radio.

https://github.com/michail-nikolaev/task-force-arma-3-radio/issues/409
Merge pull request #490 from CorruptedHeart/SettingsFix

Made it so group settings are only used if radio is default side radio.
Reduced backpack texture size from 4096x4096 to 1024x1024.
Merge pull request #492 from CorruptedHeart/BackpackTextureFix

Reduced backpack texture size from 4096x4096 to 1024x1024.
fixes #430
work for #465 (done for HUD, some issues with on of the font)