1) New hookable GameDLL func: CreateBaseline
2) New hookable Engine func: CreateInstancedBaseline
3) New GameDLL func that can be called via dllfunc: CreateBaseline
4) New GameDLL func that can be called via engfunc: CreateInstancedBaseline
1) Added get_orig_retval for retrieving the original return value of an engine function
2) Fixed engfunc being called with EngFunc_CheckVisibility so that it now works as intended
3) Hooks should now also work with FM_WalkMove, FM_TraceToss, FM_TraceMonsterHull, FM_TraceHull,
FM_TraceModel, FM_TraceTexture, FM_TraceSphere, FM_GetBonePosition, FM_GetAttachment, FM_RunPlayerMove,
FM_StaticDecal, FM_BuildSoundMsg and FM_CheckVisibility
4) Reformatted comments in some header files so they look a bit neater
