Implement support for updating OBBTrees to account for moving volume sets

Scope: GTT & OBBTreeTool

Situation: moving an entity set that represents a geometric volume

Assumption: the moving volume has no surfaces that are merged with other volumes, i.e. only the implicit complement is impacted (other than the volume that moved)

enable unjoining of OBBTrees for volume entity sets (~~#78~~)
enable deletion of OBBTrees for individual surfaces (~~#79~~)
write method that will update OBBTrees for moved geometry (~~#80~~)
- unjoin the IC volume OBBTree
- delete the moved volume OBBTree
- build the moved volume OBBTree (and its surfaces)
- join the IC volume OBBTree

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