GitLab

[Reformer classification head] Implement the reformer model classification head for text classification (#5198)

* Reformer model head classification implementation for text classification

* Reformat the reformer model classification code

* PR review comments, and test case implementation for reformer for classification head changes

* CI/CD reformer for classification head test import error fix

* CI/CD test case implementation  added ReformerForSequenceClassification to all_model_classes

* Code formatting- fixed

* Normal test cases added for reformer classification head

* Fix test cases implementation for the reformer classification head

* removed token_type_id parameter from the reformer classification head

* fixed the test case for reformer classification head

* merge conflict with master fixed

* merge conflict, changed reformer classification to accept the choice_label parameter added in latest code

* refactored the the reformer classification head test code

* reformer classification head, common transform test cases fixed

* final set of the review comment, rearranging the reformer classes and docstring add to classification forward method

* fixed the compilation error and text case fix for reformer classification head

* Apply suggestions from code review

Remove unnecessary dup
Co-authored-by: Patrick von Platen <patrick.v.platen@gmail.com>