Pyecs

Changes
- moved from pipenv to poetry

Changes
* minor quality improvements behind the scenes
* updated to new repo url

Changes
* added missing `cache_clear` call for `get_children_with`

Changes
* _Moved to stub file for typing._ To facilitate the stubs files in the packaging I needed to switch to a package based distribution from the current module based one as PEP-561 specifically states that the proper distribution of type information is only supported with package based distribution.

Changes

* _Removed disambigous typing by default._ To ensure proper typing I removed the whole "get entities and components" part from `get_entities_with` and moved back to the simpler "get entities". Additionally I changed the example in the readme to encourage the usage of the `get_component` over `get_components` as the later doesn't implement proper typing as of now. Furthermore I'm not to sure if I'll ever find a "clean" way to do so anyways...

Changes
* During testing I found that more often than not one requires the entity proxy and the requested components. To achieve with the "old" version one would need to use `unpack=False` and then get the components through then entity proxy. To remedy this both `get_entities_with` and `get_children_with` yield a collection of paired entity proxies and the tuple containing the requested components.