Rename NDFrame.filter to .select?
I've made a PR to remove ``NDFrame.select``, see #26641. That method was deprecated in 0.21.

There was a discussion in #12401, where many participants agreed that removing the old ``select`` and having ``NDFrame.filter`` renamed to ``NDFrame.select`` would be a better naming scheme. I agree on that for several of the reasons mentioned in the thread.

What do people think of such a name change and a related deprecation of the name (not functionality) ``.filter``?
