Feature Request: Support replace in DuckDBPyRelation.create

[leostimpfle]

create_view supports overwriting an existing view with replace=True. It would be nice to mirror this behaviour in create which currently errors if a table with the same name already exists.

I saw that there already is an unmerged PR #430 implementing this. The changes look good to me, so I just wanted to check if there are any blockers? @evertlammerts I appreciate that this is probably low priority but please let me know if I can help. It is one of the little things that would make my life much easier.