* implement some of MxTransitionManager
start working on MxTransitionManager::StartTransition
add TransitionType enum
implement/match MxTransitionManager::GetDDrawSurfaceFromVideoManager
implement/match global function SetAppCursor
* remove offset comment from mxomni.h
* remove misc offset comments from mxtransitionmanager.h
* address feedback
* merge m_unk20-24 into pad