GitLab

* add quantization_fp16 c api

* clang format

* add quantization c api

* clang format

* backup code for add_c_api of quantization

* add c/c++ api for the quantization

* clang format

* fix a cppcheck error

* fix cpp check error

* add unit test for quantization apis

* clang format

* fix cppcheck error

* clang format

* refine unit tests to cover more code changes

* clang format

* refine unit tests for more code change coverage

* add an op_names class

* clang format

* refine a unit test for more code change coverage

* code backup

* clang format

* remove unnecessary code

* fix review comments

* clang format
Co-authored-by: mvermeulen <5479696+mvermeulen@users.noreply.github.com>