[pytorch] Suppress C4624 warnings on Windows (#106348)
Summary:
Building on Microsoft Visual Studio can show excessive warnings of the form:
```
caffe2\c10\util\Optional.h(212): warning C4624: 'c10::constexpr_storage_t<T>': destructor was implicitly defined as deleted
with
[
T=std::string
]
caffe2\c10\util\Optional.h(411): note: see reference to class template instantiation 'c10::constexpr_storage_t<T>' being compiled
with
[
T=std::string
]
caffe2\c10\util\Optional.h(549): note: see reference to class template instantiation 'c10::trivially_copyable_optimization_optional_base<T>' being compiled
with
[
T=std::string
]
```
While we have macros such as `C10_CLANG_DIAGNOSTIC_{PUSH,POP,IGNORE}`, no there's no equivalent `C10_MSVC_DIAGNOSTIC_*`, so just do the suppressions explicitly.
Test Plan: CI should complete, but Windows build log will no longer contain C4624 warnings
Differential Revision: D47736268
Pull Request resolved: https://github.com/pytorch/pytorch/pull/106348
Approved by: https://github.com/albanD
