Reorganization of robots into individual folders.

Move all XML and model files into subfulders of the robots folder, to
make it easier to download entire models from github.
Added symbolic links to robots
Added collisionmap improvement, basic functions working
bugfixes in deprecated imports
Working collision export with openhubo integration
Fixed mapping tweaks to use proper dict syntax
Fixed testsuite and collisionmap export
Merge branch 'feature/mapping-fixes' into develop