[BF4] add Battlefield 4 support
[BF4] change plugins config file from .xml to .ini since BF4 only works with B3 1.10
[CHIV] change plugins config file from .xml to .ini since Chivalry only works with B3 1.10
Merge pull request #9 from thomasleveil/bf4

add BF4 support and support new config files extension .ini for BF4 and Chiv