Insignia

Initial proof of concept for giving units insignia. Note FIA are not
supported but (CSAT/AAF/NATO) groups will have them, but can be added.
Forgot CSAT and FIA Units

And a brief tidy up!
Replace Insignias with Faction Based ones

Images designed by Fer. Also The code has been rewritten to per faction
which should increase performance.
[Fix] Added the new Badge Defines
MP Fix

Tested and works with MP :), mainly because the command to globally set
textures does work pre-init.
Merge pull request #1 from Sniperhid/master

F3 Framework Insignia Support