* Remove fp16 of Convert layer test from skip_tests.config.cpp as it works now
* update repo
* add op reference test of experimental_detectron_detection_output and experimental_detecteion_generate_proposals and remove ngraph backend test
* modify visitor api test of experimental_detectron_detection for clang-format
* modify visitor api test of experimental_detectron_detection for clang-format again
* modify visitor api test of experimental_detectron_detection for clang-format again2