Add Super Alt-Tab macro example as module

[drashna]

Description

Adds the Super Alt-Tab behavior from the macros example as a module, with some configurable options

Blame tzarc

Types of Changes

• Core
• Bugfix
• New feature
• Enhancement/optimization
• Keyboard (addition or update)
• Keymap/layout (addition or update)
• Documentation

Checklist

• My code follows the code style of this project: C, Python
• I have read the PR Checklist document and have made the appropriate changes.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• I have tested the changes and verified that they work and don't break anything (as well as I can manage).

[tzarc]

Should probably add a note to the docs, too.

[drashna]

Should probably add a note to the docs, too.

NOt sure I understand where, though.