Commented out test (breakpoint) line
Store width and height in ExtrusionEntity objects for debugging purposes
Removed debugging line
Make sure interface and base generation honor the gap between support material and object
TODO about bridges and support material
Also remove bridged perimeters area from support material
Put continuous base flange under pillars support material
Begin converting Model.pm to C++.
Add typemap for t_layer_height_ranges.
Add Model::Object->new for C++ object.
Add Model::Volume->new for C++ object.
Add Model::Object->volumes and ->instances.
Add Model::Object->_bounding_box.
Copy ModelObject in _add_object to avoid segfault.
Add Model::Object->input_file.
Return object/volume/instance ptr arrays as Refs.
Allow getting config from ModelObject as a Config::Ref.
Allow getting layer height ranges from C++ Model::Object.
Continue translating Model to C++.
Switch to returning values from XS code with typesafe classes.