Added AIS_ViewController::MouseSelectionSchemes() property defining map of selection schemes for mouse+modifier combinations.
IsXOR flag has been replaced by AIS_SelectionScheme in interfaces.
Rubber-band selection with Shift key pressed now applies XOR selection scheme in in Draw Harness.
Command vselect has been extended to specify selection scheme by name.
meshfromstl - display MeshVS_Mesh object in a way consistent with vdisplay command
meshdel - deleted, vremove to be used instead
meshshowall - set empty maps of hidden IDs instead of null handles
meshhidesel - initialize the maps of hidden IDs to avoid exception
meshmat - add optional transparency argument and enable transparency in the viewer if not yet done
meshvectors - command for testing VectorPrsBuilder added
MeshVS: DRAW commands improving
Updating test cases due to previous changes
Small bug in MeshVS_ElementalColorPrsBuilder fixed
vselmode fix
Small correction of test cases for issue CR24961
