* Add support for new QAT models

test=develop
Co-Authored-By: NMichał Gallus <michal.gallus@intel.com>
Co-Authored-By: NWojciech Uss <wojciech.uss@intel.com>

* fixed fps results

test=develop

* fix top5 accuracy drop problem

* updated for new QAT models

* skip quantizing average pooling - dirty but working

* add missing pass

* added missing conv+brelu fuse pass

* removed a call to non-existent pass

test=develop

* renamed pass

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* Adjust finding pooling scale to newest QAT models

* Remove unnecessary code from quantization_mkldnn_pass

* Copy Pooling input scale to output scale in QAT

* Refactor & remove unused code in QAT

* Incorporate fp32 FC into QAT

test=develop

* Enable graph drawing with debug flag

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* Add tests for QATv2

* Fix paths for QATv2 models

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* Add option to save transformed int8 qat model

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* Remove redundant lines from qat mkldnn pass

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* Delegate disablement of avg pooling to qat

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* fix CI bug, test=develop

* Follow Wangzhen's Review, test=develop

* Update API.spec

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* Name False in (is_unsigned, TensorScale) tuple

test=develop