try to add `wemake-python-styleguide`

[makridenko]

[darya-shynkevich]

Hey @makridenko I tried to adopt https://github.com/wemake-services/wemake-python-styleguide/ yet I think you need to check it carefully in order to check if you want to fix some global ignores. I personally like your code and think that wemake is too strict, yet I am eager to hear your opinion.

I tried to fix as much as possible.

[makridenko]

@darya-shynkevich

I personally like your code

thank you :)

wemake is too strict

that's the point :)

I'll review your PR, thank you

[makridenko]

@darya-shynkevich I looked at your PR, thank you! In my opinion it's great as a first step, then we can remove wps ignore codes step by step