Expose Onnxruntime Intra Op thread controls through WinML Native API (#4638)
* Register ILearningModelSessionOptionsNate interface
* Threading options exposed
* Add interrogator for Session options
* Add test
* Polish test
* PR comments
* Set intra op threads
* Add adapter api to grab intra op threads
* Add adapter test for getting intraop num threads
* Make ILearningModelSessionNative and update winml api test
* Make it required when building engine to set the intraop num threads
* Make test more pretty
* Change naming of idl function
* Revert "Change naming of idl function"
This reverts commit c06916aa5bf94e3bf233ed281e508b935fc8638d.
* PR comment on naming
* Skip the test because it's influenced if it's built with openmp
Co-authored-by: Ryan Lai <ryalai96@gamil.com>