Fastapi-restful

* Add `Resorce` classes for more OOP like designing
* Methods are now can be used as class names

* Fix bug with multiple decorators on same method

* Make some of the functions/classes in `fastapi_utils.timing` private to clarify the intended public API
* Add documentation for `fastapi_utils.timing` module
* Fix bug with ordering of routes in a CBV router

* Add source docstrings for most functions.

* Initial release.