Material tools

Several tools to work with textures, geometry faces ID and more.

MapLoaderLoad multiple bitmapTextures to the slate material editor
FnameToBMapChange the names of Bitmap Textures to the name of the loaded files.
Remove_matsRemove material from selection
SelNoMatFilter nodes without material in current selection.
ObjIDbyCAMSet objects ID for current camera view
FaceSelSelect faces with same material ID
RndIDSetSet random material IDs for selected faces
QIDSetSet material IDs for selected faces