* Commit.
* Written the header file for the nGraph operation ExperimentalDetectronTopKROIs.
* Written an implementation file of the nGraph operation ExperimentalDetectronTopKROIs.
* Small fix.
* Added the nGraph operation ExperimentalDetectronTopKROIs into the table of ops of opset6.
* Written the header file for the nGraph operation ExperimentalDetectronGenerateProposalsSingleImage.
* Code style fix.
* Written cpp-file of the nGraph operation ExperimentalDetectronGenerateProposalsSingleImage.
* Now the operation ExperimentalDetectronGenerateProposalsSingleImage is read as nGraph operation.
* Code style fix.
* Fix in ngraph/ops.hpp
* Added NGRAPH_OP_SCOPE to the nGraph class ExperimentalDetectronGenerateProposalsSingleImage.
* Added NGRAPH_OP_SCOPE to the nGraph class ExperimentalDetectronTopKROIs.
* Code style fix.
* Small fix.
* Added NGraphReshapeTests of ExperimentalDetectronGenerateProposalsSingleImage when ExperimentalDetectronGenerateProposalsSingleImage is considered as opset6 operation.
* Changed copyright year to 2021.
* Deleted the method ExperimentalDetectronTopKROIs::set_max_rois.
* Deleted redundant virtual.
* Now ExperimentalDetectronTopKROIs::validate_and_infer_types() handles all cases when input 0 and input 1 have static/dynamic rank independently.
* Code style fix.
* Small fix.
* Started to write shape infer tests for the nGraph operation ExperimentalDetectronTopKROIs.
* Written shape infer tests for the nGraph operation ExperimentalDetectronTopKROIs.
* Code style fix.
* Added checks of input shapes into ExperimentalDetectronGenerateProposalsSingleImage::validate_and_infer_types(). Started to write tests for ExperimentalDetectronGenerateProposalsSingleImage::validate_and_infer_types().
* Small fix.
* Fixes in ExperimentalDetectronGenerateProposalsSingleImage::validate_and_infer_types(). Written draft tests for ExperimentalDetectronGenerateProposalsSingleImage::validate_and_infer_types().
* Code style fix.
* Fixes in reshape tests for ExperimentalDetectronGenerateProposalsSingleImage.
* Added Doxygen documentation to the nGraph operation class ExperimentalDetectronGenerateProposalsSingleImage.
* Deleted methods validate_scores_shape and validate_deltas_shape of op::v6::ExperimentalDetectronGenerateProposalsSingleImage.
* Deleted methods validate_input_rois_shape and validate_rois_probs_shape of op::v6::ExperimentalDetectronTopKROIs.
* Added class descriftion for nGraph operations ExperimentalDetectronTopKROIs and ExperimentalDetectronGenerateProposalsSingleImage.