Part 1: Speed up of import functionality.
Correction in ShapeFix_IntersectionTool::FixIntersectingWires() - preliminary construction of ShapeAnalysis_Surface tool for the whole face; computation of 2d bounding boxes for edges and wires before intersection checking.
Part 2: Speed up of check shape.
Correction in BRepCheck_Face::IntersectWires() in the same way: preliminary computation of 2d boxes for edges and wires in order to reduce the number of calls of intersection tool for pair of wires.
Test cases for issue CR24596
License statement text corrected; compiler warnings caused by Bison 2.41 disabled for MSVC; a few other compiler warnings on 54-bit Windows eliminated by appropriate type cast
Wrong license statements corrected in several files.
Copyright and license statements added in XSD and GLSL files.
Copyright year updated in some files.
Obsolete documentation files removed from DrawResources.