* Update docs
* create type_prop test for cos
* Create visitor test foor cos
* add RTTI macro
* Create separate ref impl for integer input
* add cos to SLT integer activation type
* add backend test for int input
* add cos to constants.py
* style apply
* fix spec
* add ngraph check for outputs and inputs
* fix inputs ngraph check
* remove unnecessary includes
* style dix
