Add slanted plane with rotated OBB. AH-163

Also found missing roll in physics.
Changed the Witch and House to use BC5 compressed dds files.
Merge remote-tracking branch 'origin/AH-163_Demo3' into AH-163_Demo3_DDS
Commit
Add missing memory size. AH-163
Merge remote-tracking branch 'origin/AH-163_DemoOBB' into AH-163_Demo3

Conflicts:
	Client/Source/BaseGameApp.cpp
Merge remote-tracking branch 'origin/AH-163_Demo3' into AH-163_Demo3_ModelConverting

Conflicts:
	Client/Bin/assets/models/Witch_Run_05.btx