* Bump version to 4.3.9: FastAPI example
* Reengineer wiring
* Add @inject decorator
* Add .workspace dir to gitignore
* Add generic typing for @inject
* Add type cast for @inject
* Update movie lister example
* Update cli application tutorial
* Update demo example
* Update wiring docs and examples
* Update aiohttp example and tutorial
* Update multiple containers example
* Update single container example
* Update decoupled packages example
* Update django example
* Update asyncio daemon example and tutorial
* Update FastAPI example
* Update flask example and tutorial
* Update sanic example
* Add wiring registry
* Add new line to .gitignore
* Add @inject to the test samples
* Fix flake8 errors
