Add schema for new Qops (#2611)
Add schema for new Qops (#2611)

* Add schema for new Qops

* adding shape inference + qlinearaveragepool

* plus review comments

* plus review comments

* updates per review comments

* plus review comments

microsoft/onnxruntime,microsoft/onnxruntime,microsoft/onnxruntime,microsoft/onnxruntime,microsoft/onnxruntime,microsoft/onnxruntime,microsoft/onnxruntime,microsoft/onnxruntime,microsoft/onnxruntime,microsoft/onnxruntime,microsoft/onnxruntime,microsoft/onnxruntime