* Initial implementation

* Fixed Gelu

* Gelu backprop initial implementation

* Add GeluBackprop fusion

* Gelu and gelu backprop fusion test cases

* Prevent decompose_op() for Gelu/GeluBackpropFactor for some type

* Fixes and cleanup

* Enabled backprop fusion

* Fixed some issues

* Mostly cleanup

* Some more cleanup

* File permissions

* Remove unused variable

* Style check

* Address PR feedback

* Address PR feedback

* Incorporate changes related to latest master

* Style check

* Some more PR feedback related changes

* Remove comment

* Check for relative error

* Retrigger CI

* corrected syntax