created space type
changed mesh template parameter to space
changed point cloud template parameter to space
created mesh render state node
introduced mesh node
combined triangle and line mesh insert methods
combined even more methods in scene manager
combined point cloud template methods in scene manager
introduced zero-, one-, and two-dimensional geometries
removed gear grind functionality
combined gui state nodes into one class
combined simple geometry nodes
simple geometry node rigid affine transformation space added
removed bspline methods from scene manager
simplified scene manager
some more renaming
point cloud refactoring
removed mesh typedefs
cleaned up mesh render state node
removed geometry find visitor