where-not optimization

[ananyamukh6]

// where(not(b), x, y) -> where(b, y, x)
// https://github.com/microsoft/onnxruntime/blob/v1.15.1/onnxruntime/core/optimizer/not_where_fusion.h

[daquexian]

LGTM, thanks!

[ananyamukh6]

@daquexian , the tests seemsed to have failed because of flake8. I pused a patch fixing the flake8 errors. Is there any other style checks to be run (like say for the cpp code)?

[daquexian]

@daquexian , the tests seemsed to have failed because of flake8. I pused a patch fixing the flake8 errors. Is there any other style checks to be run (like say for the cpp code)?

I think not (if memory serves). BTW, it seems that you need to sign the DCO again.

[ananyamukh6]

@daquexian , Added the DCO sign off