feat: HERCULES INPULSE 500 mappings

[jssotomdz]

included colored hotcues, slicer and beatmatch guides

[JoergAtGithub]

The pre-commit check is failing. The best way to fix pre-commit issues is to install pre-commit locally on your system, as described here: https://github.com/mixxxdj/mixxx/wiki/Using-Git#set-up-automatic-code-checking
Than it will fix these issues automatically before every commit.
Alternatively, you can download the pre-commit.patch file from the artifacts of this PR

unzip it, and apply it using:
git apply pre-commit.patch

[Holzhaus]

Thanks for contributing.