[Keyboard] Add Typface Univers

[itsme-zeix]

Description

Added support for Typface Univers.

Types of Changes

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

[dunk2k]

To confirm to how build markers have been reworked as of most recent breaking changes, can:

1. rules.mk be removed
2. info.json re-named to keyboard.json

[dunk2k]

Based on store page, this PCB comes in to two variants - can the directory structure of this PR be change to reflect variants available.

[itsme-zeix]

To confirm to how build markers have been reworked as of most recent breaking changes, can:

1. rules.mk be removed
2. info.json re-named to keyboard.json

Will make these changes, thank you for notifying me about the breaking changes!

Based on store page, this PCB comes in to two variants - can the directory structure of this PR be change to reflect variants available.

The firmware supports both the solder and hotswap variant, though the hotswap variant does not include ISO compatibility - in that case, is there still a need to duplicate the files?