- draw bspline surface in envmapping draw mode
- output textures in renderobject info string for debugging

- emulate glTexGen in Shader Generator for env mapping with render objects

Revert "added stable versions (for degenerate triangles return the distance to the longest edge) for distPointTriangleSquared and distPointTriangle"

This reverts commit e8c832dd.

Revert " Accidentally merged Triangle code"

This reverts commit 1ca7b894.

Revert "add ear clipping triangulation algorithm"

This reverts commit 8686ee90.

added stable versions (for degenerate triangles return the distance to the longest edge) for distPointTriangleSquared and distPointTriangle

added stable versions (for degenerate triangles return the distance to the longest edge) for distPointTriangleSquared and distPointTriangle