Add bodypart definitions

http://wiki.sa-mp.com/wiki/Body_Parts
Add camera mode definitions

http://wiki.sa-mp.com/wiki/CameraModes
Added post explaining camera definitions
Renamed camera definitions

to conform to the names at
http://gtag.gtagaming.com/sanandreas/camera-modes/
Accidently added an extra "_MODE" in one of the defines.
Merge pull request #28 from Whitetigerswt/master

Bodypart definitions & Camera mode definitions