0027735: Visualization, OpenGl_ShaderManager - fix clipping state management

0027735: Visualization, OpenGl_ShaderManager - fix clipping state management

OpenGl_CappingAlgo::RenderCapping() now updates clipping state in Shader Manager.
OpenGl_View::render() clipping state setup has been moved to OpenGl_View::renderScene().

OpenGl_ShaderManager now converts position to homogeneous coordinates within clipping code GLSL.
This fixes capping plane rendering with clipping planes applied.

Fixed possible Clipping planes misconfiguration when FFP is used;
error-prone OpenGl_Clipping::AddWorldLazy() method has been dropped.