Annihilate tweaks

Improved camera fixup

Minor bugfix & compat fix improvement

Removed XComCamera.ini for better compatability. Minor fixes to camera selection in corner cases.

• Fixed bug (in game, not the mod!) which meant that sometimes the soldier went back into cover between the shots, and then took the second shot without exiting cover so facing the wrong way.
  
• Second shot no long waits on environmental damage to finish animating again. This earlier change was reverted as part of the silent second shot bugfix.

• Added support for Dual Strike
  
• Overhauled the cinescript cameras, taylored to each combination of options, in particular if OTS targeting is disabled, the camera will drop to OTS when the shot is taken.

Finally got that silent 2nd shot bug I think...

Improvements

• MCM integration for changing options
  
• The Lost OTS targeting and cinematic shots

Imrpovements:

• Camera far less likely to pop back to overhead for the second shot.
  
• Now compatible with the Community Highlanders Banish fix.
  
• Slight tweak making the second shot animation not wait on enviromental destruction to finish animating.

• The silent second shot bug sould be gone
  
• Idle State Machine now less likely to put the unit back into cover between shots.