0025556: Visualization - support stereo pair formats recognized by consumer display devices

Graphic3d_StereoMode - add new enumeration for stereoscopic outputs:
- Graphic3d_StereoMode_QuadBuffer
- Graphic3d_StereoMode_Anaglyph
- Graphic3d_StereoMode_RowInterlaced
- Graphic3d_StereoMode_ColumnInterlaced
- Graphic3d_StereoMode_ChessBoard
- Graphic3d_StereoMode_SideBySide
- Graphic3d_StereoMode_OverUnder

Graphic3d_RenderingParams - add new options controlling stereo output:
- StereoMode
- ToReverseStereo
- AnaglyphFilter

OpenGl_ShaderManager - add predefined GLSL programs for new stereo outputs.
OpenGl_Workspace::Redraw() - do not implicitly disable stereo to allow stereo dump as is.
OpenGl_Caps - add flag swapInterval to control VSync.
OpenGl_Workspace::BufferDump() - handle cases with non-applicable GL_PACK_ROW_LENGTH.

CALL_DEF_WINDOW - drop unused fields; add fields "left" and "top"
to reverse stereo pair for interlaced output depending on window position.

Draw Harness, ViewerTest:
- Extend syntax of command vstereo to setup stereo.
- Extend vdump command to allow dump of stereoscopic pair in different formats.
- Extend command vcaps with option vsync.
- Use mouse scroll to zoom and adjust ZFocus in WinAPI.
- Use "/" and "*" to adjust IOD.

v3d/glsl/stereo - add test case for stereo modes.

Cocoa_LocalPool, OSD_EnvironmentIterator - fix compilation issues on OS X Snow Leopard.

src/OpenGl/OpenGl_Workspace.hxx

@@ -295,7 +295,7 @@ protected:
   void bindDefaultFbo (OpenGl_FrameBuffer* theCustomFbo = NULL);
 
   //! Blend together views pair into stereo image.
-  void drawStereoPair();
+  void drawStereoPair (const Graphic3d_CView& theCView);
 
   //! Blit snapshot containing main scene (myMainSceneFbos or BackBuffer)
   //! into presentation buffer (myMainSceneFbos -> offscreen FBO or myMainSceneFbos -> BackBuffer or BackBuffer -> FrontBuffer),