0024742: Remove rarely used collection classes: Queue

0024742: Remove rarely used collection classes: Queue

Generic "TCollection_Queue" class removed (along with "TCollection_QueueNode" and three instantiations in TColStd). Template class TCollection_Queue removed.

The code using queue classes converted to use lists for the same purpose (replacing Push -> Append, Front -> First, Pop -> RemoveFirst). In OpenGl_Context, list is used as stack instead of queue, for it looks more natural for release of resources (last allocated - first released).