Add trigger options to weapon events / repetition

[jonpas]

When merged this pull request will:

• Add options to weapon events / weapon animations framework / weapon repetition:
  • Leave Optics: leave optics view to bolt/rack (old default)
  • Trigger Release: release trigger to bolt/rack (new default)
  • Trigger Press: press trigger again to bolt/rack

TODO:

• Make CBA_triggerPressed GVAR or public API -> GVAR
• Set default option to Trigger Release
  • Friendlier to new users and used in more games
• Support non-LMB triggers -> later if requested (if anyone even uses non-LMB trigger)
• Add option for vanilla behaviour (Trigger Release default accomplishes the same) -> later if requested
• Rename "Trigger Press" to "Trigger Re-Press" -> nope

[jonpas]

Done, confirmed in-game with CUP Lee Enfield.

I decided to not support non-LMB triggers or add vanilla behaviour at this time, reasons above. Can be added later if requested.

Should I rename "Trigger Press" to "Trigger Re-Press" to make it clearer or is it clear enough?

[jonpas]

On hold for @commy2's settings update that will allow adding settings in preInit regardless of load order.

Will remove CBA_settingsInitialized as it won't be needed.