[Node]  add GLint _glId parrameter as openGl object name for selection.  Start doing picking
[Cube, GlWidget] add namming stack
[Nodes] fix GLint to GLuint
[Widged] picking 1.version
[Node] picker with selection color on picked node
[GrEdge] add painting of vurve
[Drawer] selection connected nodes prototyp
[Drawer] picking update