Add support for geigeigeist/totem

[zelezarof]

Description

Add support for TOTEM keyboard, it's a 38 keys column-staggered split keyboard made by @GEIGEIGEIST. It uses the Seeed XIAO RP2040.

Keyboard's hardware information was taken from the source code of the creator of the keyboard: geigeigeist/totem

Keymaps and Layers cover the basics needs of a fully functional keyboard, loosely based on miryoku by manna-harbour

• Alpha Keys
• Number Keys
• Function Keys
• Navigation Keys

Types of Changes

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

Issues Fixed or Closed by This PR

• N/A

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).

[zelezarof]

@waffle87 thanks a lot for the review, I believe I've addressed all of them.

[zelezarof]

Thanks @drashna, I've addressed the changes, let me know if anything else requires my attention.