Move functorcollections.py to DaVinci
Following the discussion in !898 (comment 5891207)
The functorcollections
are actually tested with DaVinci test units, and some of the imported classes in functorcollections
are defined in the upstream (DaVinci).
So maybe it's better to place functorcollections.py
in DaVinci. This possibility should be considered thoroughly. We can discuss this after the DaVinci dependencies MR and clean-ups MR are done.