* Written the header file for the nGraph operation DFT.
* Small change.
* Started to write the implementation of the nGraph shell of the operation DFT.
* Started to write void op::v7::DFT::validate_and_infer_types().
* Small fixes.
* Code style fixes.
* Written the draft of the shape infer for the nGraph operation DFT.
* Small fixes.
* Code style fixes.
* Added DFT into opset7 table.
* Some additions.
* Small fixes.
* Code style fix.
* Some fixes.
* Some fix.
* Small fixes.
* Started to write shape infer tests for the nGraph operation DFT.
* Written shape infer tests for the nGraph operation DFT.
* Some code style fixes.
* Small fix.
* Code style fixes.
* Code style fixes.
* Deleted unused variables.
* Added support for negative axes.
* Started to write IE IR Reader tests for the nGraph operation DFT.
* Small fix.
* Added the second IE IR Reader test for the nGraph operation DFT.
* Small fix.
* Added the third IE IR Reader test for the nGraph operation DFT.
* Corrected Doxygen comment.
* Started to rewrite DFT type_prop tests as parametrized tests.
* Small fixes.
* Some additions.
* Small fix.
* Small fix.
* Some tests were written as parametrized tests. Some code style fixes.
* Code style fixes.
* Continued to rewrite tests for DFT as parametrized ones.
* Some deletions.
* Some additions.
* Deleted redundant tests.
* Started to rewrite some tests.
* Some changes.
* Deleted commented code.
* Started to convert tests for the case non-constant axes into parametrized tests.
* Rewritten tests for the case non-constant axes as parametrized tests.
* Started to convert tests for the case non-constant signal_size into parametrized tests.
* Rewritten tests for the case non-constant signal size as parametrized tests.
* Added checks for number of inputs.
* Small fixes.
* Small fixes.
* Refactored shape infer and corrected tests.
* Some refactoring.
* Now the function validate() is protected.
* Small refactoring.
* Fixed typo.
* Added some comments.
* Fixes in infer function.
* Added test.
* Fixed test.
Vladimir Gavrilov