[SR] Add new `fb::split_and_squeeze` op (#73252)
Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/73252
Test Plan: New unit tests
Reviewed By: d1jang
Differential Revision: D34399345
fbshipit-source-id: 80cbf3e1556f2152576a07d1eeb3bb6ef97096cf
(cherry picked from commit 259956749dad88f0960eecb60135cd466f1b56f4)
