GitLab

* new onehot implemenation by combining other operators

* clang format

* backup

* update unit tests

* clang format

* add onehot and tests, add missing gen_tf for onehot

* formatting

* fix cast

* specify onehot for error msg
Co-authored-by: mvermeulen <5479696+mvermeulen@users.noreply.github.com>