Reorganise RA-specific parts of Mods.RA a little more
Bring Mods.D2k in line with our new folder/namespace structure
Merge pull request #7133 from reaperrr/ra-reorg10

Reorganise Mods.D2k, more reorganisation for Mods.RA
D2k - Added more Rifle Inf. to Starting Units.
Merge pull request #7146 from MustaphaTR/d2k-starting-units

D2k - Added more Rifle Inf. to Starting Units.