Don't create orientation slots for all spaces

Trying to create orientation slots for all spaces could potentially
involve a lot of duplicate method calls because blender has no way to
query the list of existing orientation slots, so we can't check to see
if setting a slot is necessary.

So this patch now simply creates/overwrites and uses a single
orientation slot whenever the user switches the default spatial
container, and then only if the spatial orientation is non-world.

src/bonsai/bonsai/bim/module/spatial/operator.py

@@ -239,7 +239,6 @@ class ImportSpatialDecomposition(bpy.types.Operator):
 
     def execute(self, context):
         core.import_spatial_decomposition(tool.Spatial)
-        core.create_orientation_slots(ifc=tool.Ifc, spatial=tool.Spatial)
         return {"FINISHED"}
 
 

src/bonsai/bonsai/core/spatial.py

@@ -121,11 +121,6 @@ def import_spatial_decomposition(spatial: tool.Spatial) -> None:
     spatial.import_spatial_decomposition()
 
 
-def create_orientation_slots(ifc: tool.Ifc, spatial: tool.Spatial) -> None:
-    products = ifc.get().by_type("IfcSpatialElement")
-    spatial.create_orientation_slots(products, use=False)
-
-
 def set_orientation_slot(spatial: tool.Spatial, product: ifcopenshell.entity_instance) -> None:
     spatial.create_orientation_slots([product], use=True)