0024437: Efficient HLR visualization based on OpenGL and GLSL

0024437: Efficient HLR visualization based on OpenGL and GLSL

New interior style Aspect_IS_OUTLINE is supported for Graphic3d_AspectFillArea3d.
If this style is set, the triangles primitive array is drawn using the outline shader

A new flag theMostAllowedEdgeClass is passed to the methods StdPrs_ShadedShape: Add, FillFaceBoundaries.
It defines the most allowed continuity class of edges that will be included into the presentation.
The edges with more continuity will be ignored.
By default, the value is CN, i.e. all edges are included into the presentation.
The new methods in AIS_Shape: SetMostContinuityClass, MostContinuityClass allows specifying the most allowed continuity class of edges at the level of shape's presentation