Combine `list` and `find` commands because they are redundant

[boldandbrad]

find is currently just a superset of list. It can do everything list can do with the same syntax, while also supporting multiple collections, and additional filters.

Fold all the functionality under list and either remove find or make it an alias for list.

[boldandbrad]

Perhaps a solution like this: https://stackoverflow.com/questions/46641928/python-click-multiple-command-names