New loadout approach

[Casperento]

Changes proposed in this pull request:

• fn_startLoadout.sqf refact. to use setUnitLoadout

• Config_Loadouts.hpp reworked to support Arma 3 Unit Loadouts format

• I have tested my changes and corrected any errors found

[DomT602]

Some initial comments - definitely the right direction.

[Casperento]

Everything tested and working as expected

[DomT602]

Cheers for the update @Casperento. So we've been discussing the config style - specifically the naming convention. A suggestion could be to have them as cop_level_x, med_level_x. This could then mean we don't need to str(playerSide). We could do the side via a switch just add that to the format (which will later be replaced by life_util_fnc_sideToString (which is currently in #640. e.g: format["%1_level_%2",_side,_level]
This will hopefully make it clearer for users. Also - the way civilians are done is not ideal and I'd like to see if we can find another way around this. Open to any thoughts?

[Casperento]

Sounds good. About the civilian classes, i'm not sure yet how can we work it. I'm opened to suggestions..

[DomT602]

Good work - a few more changes, we're getting very close to a solid end-state though.

[DomT602]

Thanks for all your work @Casperento. This is a good PR for master.