Somei70 addition

[gzowski]

Somei70 - 70 key keyboard with OLED and RGB LED's

Description

New keyboard to add to QMK. formatted json, kept everything in keyboard.json where possible. Only one layout being default but with VIA_ENABLE set.
Not sure if this needed to be in it's own VIA keymap or whether default was fine.
Link to projects github currently private while build guide is being written up.

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

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).

[gzowski]

Do I need to make any further changes?

[gzowski]

Forgot I still had this open, Is there anything I'm missing out at this point to be added/modified?