onnxruntime

Add robust dependency check for Python package (#6436)

* Add robust dependency check for Python package

* Add version_info.py to .gitignore

* Fix Linux build

* Fix Windows CPU build

* Fix Windows 32-bit build

* Minor tweak

* Generate version_info.py earlier in onnxruntime_python.cmake

* Print a user-friendly message if cuDNN is not found in

* Relax version requirements for CUDA 11 - only the major version has to match

* Fix PATH environment variable to include CUDA 11 in 'Python packaging pipeline' (Windows/GPU)

* Fix the build with cuDNN 7