AIS_Shape and AIS_ColoredShape now computes Shaded presentation
with UV coordinates if texture mapping is enabled in Drawer.
OpenGl_Context::SetTextureMatrix() - fixed inconsistent handling
of texture cooridnates translation vector.
vtexture command has been extended to handle new arguments:
* -trsfTrans, -trsfScale, -trsfAngle defining transformation matrix
* -setFilter, -setAnisoFilter to setup texture filtering
a6dee93dfa