Provide GitHub suggestions for code smells

[schalkms]

There are code smells depending on the static analysis tool, which have an auto-fix available.
This auto-fix could be provided with a Github suggestion when codefactor comments the corresponding code smell in a Github PR.
The suggestion syntax on Github looks like this.

```suggestion

For example detekt has a formatting ruleset, which provides auto-fix functionality.

References:

• https://help.github.com/en/github/collaborating-with-issues-and-pull-requests/incorporating-feedback-in-your-pull-request
• https://help.github.com/en/github/collaborating-with-issues-and-pull-requests/commenting-on-a-pull-request

[cordis-dev]

Closing this as part of cleanup, support for this has been added since last year and is enabled by default for newly-imported repositories.