Added
* Added `Model.search_ifc_classes()` and `File.search_ifc_classes()` to search for IFC classes.
* Added `Model.create_wall()`.
* Added `Model.create_slab()`.
* Added `Model.create_window()`.
* Added `Model.create_door()`.
* Added `Model.create_stair()`.
* Added `Model.create_railing()`.
* Added `Model.create_column()`.
* Added `Model.create_beam()`.
* Added `aabb` axis-aligned bounding box to `TessellatedBrep`.
* Added `obb` oriented bounding box to `TessellatedBrep`.
Changed
Removed