New formats support

[sgaist]

This merge request implements a couple of requested format support.

Each format is in it's own commit to keep things clearly separated.

Fixes #575
Fixes #614
Fixes #616

[nicorikken]

@sgaist Thanks a lot! Reading up on .clang-format I see this is supposed to be the entire filename, not the extension. Also the _clang-format filename is a valid alternative. I added it in #575 perhaps you can add that to that commit? Otherwise I think this looks good.

[sgaist]

Sure thing !

Should we consider adding support for other tools configuration files like .flake8, .bandit and the likes ?

[nicorikken]

If you have suggestions, please do. Please provide some examples or references in the commit or discussion so we can refer to it at a later stage.

[sgaist]

Shouldn't I rather open an issue about that topic so we can discuss there the list of tools ?

[nicorikken]

@sgaist yeah that would probably be best.

[sgaist]

In this case, should I remove the .clang-format commit from this PR and put it back when the tools file support discussion is done ?

[carmenbianca]

You can put it in FILENAME_COMMENT_STYLE_MAP.

_clang-format I am not sure about.

[sgaist]

Thanks @carmenbianca I somehow missed that one. Will be perfect for #633.

[carmenbianca]

LGTM

[sgaist]

One thing I just realized, I have listed the specific issues per commit which can trigger quite a lot of noise on their respective page.

I think I should rewrite the message of these commits and only mention the issues in the pull request.

Agreed ?

[sgaist]

I fixed the pylint issue and did the message change at the same time.

[carmenbianca]

Added a change log. Will merge when tests succeed. Thank you @sgaist !