Dict provider

[lesnik512]

https://python-dependency-injector.ets-labs.org/providers/dict.html

Very similar to https://that-depends.readthedocs.io/providers/list.html

[Denis-Frunza]

@lesnik512 Is it possible to start working on this improvement? Are there any particular rules I need to know before opening a PR?

[lesnik512]

@Denis-Frunza yes, it would be great!
It's better to put this provider here with List https://github.com/modern-python/that-depends/blob/main/that_depends/providers/collections.py

And here is small guide for contributors https://that-depends.readthedocs.io/dev/contributing.html