[1/n] [c10d] Introduce a new TCPStore constructor (#58328)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/58328
This PR is part of a stack that addresses the GitHub issue #41614; it introduces a new `TCPStore` constructor that takes its optional parameters via a newly introduced `TCPStoreOptions` structure. This gives the API callers the flexibility to specify only the desired options while skipping the rest.
The main motivation behind this change is the introduction of the `multiTenant` constructor option in the second PR of this stack.
ghstack-source-id: 130676384
Test Plan: Run the existing tests since there are no behavioral changes.
Reviewed By: H-Huang
Differential Revision: D28417742
fbshipit-source-id: e6ac2a057f7ad1908581176ee6d2c2554c3c74a9
