pytorch

40e88b75 - extract out //c10/util:base library (#70854)

extract out //c10/util:base library (#70854) Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/70854 We can't do the entire package since parts of it depend on //c10/core. ghstack-source-id: 147170901 Test Plan: Rely on CI. Reviewed By: malfet Differential Revision: D33321821 fbshipit-source-id: 6d634da872a382a60548e2eea37a0f9f93c6f080 (cherry picked from commit 0afa808367ff92b6011b61dcbb398a2a32e5e90d)