feature-request: Etesian.create() and EtesianEngine.place() to accept a list of instances for placement
see https://bugs.libre-soc.org/show_bug.cgi?id=217#c85
rather than only allowing one Cell (which can only come from the .vst) we would like to perform selective Etesian place on subsets of the instances in a Cell.
two possible programming ways this could be achieved:
- add an extra method Etesian.create_from_instance_list()
- create a new virtual type of "Cell" which can have instances added to it which are already in an existing cell.