[Static Runtime] Introduce static_runtime::dict_unpack (#64771)
Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/64771
Test Plan:
- Added `StaticRuntime.RemoveImmutableInputDictLookupsWithImmutableInputDict`
- Added `StaticRuntime.RemoveImmutableInputDictLookupsWithMutableInputDict`
- TBD: Perf impact measurement
Reviewed By: mikeiovine
Differential Revision: D30685083
fbshipit-source-id: 050a92ef3b3ed0fdc0ab7a13a4b5dbfede9342a9
