Cocoa_Window draft
OpenGl_Context and OpenGl_Window - added support for Cocoa OpenGL context
TKV3d - accept Cocoa_Window
Draft version of ViewerInit method for Mac OS X
Added ViewerTest_CocoaEventManagerView
ViewerTest - attach events to Cocoa window
Cocoa_Window - disable autorelease on close
Fix for OpenGl_Context::Init method
Cocoa_Window - convert top-left coordinates to bottom-left
Added selection with rubber band (rubber band drawing still should be implemented)
Fixed OpenGl_Display initialization on Mac OS X
Fixed OpenGl includes
Windows: Exporting non-inline methods that provide info about the current state of OCCT renderer.
Minor tweak: fixing incomplete handle/dynamic type for OpenGl_Resource
vuserdraw command added to test UserDraw basic operation
Separate source file ViewerTest_OpenGlCommands.cxx added for commands testing low-level TKOpenGl functionality
