Add quantization tool and its unittest with s8s8 support (#10007)
* Add quantization tool with s8s8 support
* Add unittest for existing s8s8 support operators
* Comment ready unittest for upcomming s8s8 operator (ConvInteger, and Resize)
* Minor change on quantization tools
* Use different s8 min value upon weight or activation.
* use same qmin for reduce ranged s8.