Initial UNICODE (UFT-8) characters support for OCCT file operations
Fix for compilation errors and fix for StepFile (avoid objects in pure c code)
Fixes for set unicode symbols to OCAF and visualization
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.