✨ Implement __repr__ methods for path parameters to simplify debugging (#1560)

✨ Implement __repr__ methods for path parameters to simplify debugging (#1560)

* repr description added to Depends class

* repr description added to Security subclass

* get rid of __repr__ in security since it will inherit from super

* make code format consistent with rest

* add desc for rest of the classes

* Update fastapi/params.py

remove trailing whitespace

Co-authored-by: Marcelo Trylesinski <marcelotryle@gmail.com>
* Implement __repr__

* fix formatting

* formatting again

* ran formatting

* added basic testing

* basic tests added to rest of the classes

* added more test coverage and simplified test file

Co-authored-by: Marcelo Trylesinski <marcelotryle@gmail.com>
Co-authored-by: Jayati Shrivastava <gaurijove@gmail.com>