0023544: Texture management in TKOpenGl should be redesigned

Structures Graphic3d_CView, Graphic3d_CStructure, Graphic3d_CGroup become classes and their definitions moved from InterfaceGraphic to Graphic3d.
Introduced new class OpenGl_Texture as replacement for OpenGl_ResourceTexture class and static functions in OpenGl_TextureBox.
Graphic3d_TextureRoot now no more communicate within Graphic3d_GraphicalDriver.
Instead class returns image through GetImage() method.
OpenGl_AspectFace - avoid possible NULL-dereference
OpenGl_Texture::Init() - check gluBuild2DMipmaps() return value
OpenGl_Texture - check GL_BGRA_EXT for compatibility
OpenGl_Texture - scale NPOT image when required
Added more description to Graphic3d_TextureRoot class
OpenGl_Texture - added missing break statement for ImgBGR32 case
OpenGl_Workspace::setTextureParams() - fixed local variable aFilterMin overrides visibility of early declared variable
OpenGl_Workspace::DisableTexture() - reset texture matrix
FTGL do not reset texture matrix and corrupt text could be rendered if custom texture has not identity texture matrix.

src/Image/Image_PixMap.hxx

@@ -21,6 +21,7 @@
 #define _Image_PixMap_H__
 
 #include <Image_PixMapData.hxx>
+#include <Image_PixMap_Handle.hxx>
 #include <Standard_Transient.hxx>
 #include <Quantity_Color.hxx>
 
@@ -289,6 +290,4 @@ public:
 
 };
 
-DEFINE_STANDARD_HANDLE(Image_PixMap, Standard_Transient)
-
 #endif // _Image_PixMap_H__