Add the filter mod to the voron repository

[nateb16]

Which mods are added by this PR?

This adds THE_FILTER ecosystem to the Voron design mod repository

How was it tested?

Any background context you want to provide?

My mod has been installed on many voron's as a reliable substitute for the Nevermore filter. It provides a noticeable performance increase to stock voron printers through passive heating of the chamber.

Screenshots (if appropriate)

⚠️⚠️PLEASE READ AND COMPLETE THE CHECKLIST BELOW⚠️⚠️

• [x ] I have read the rules available here and my mod adheres to these rules.
• [ x] This mod was created by myself and I agree to publish it under the repository license

[MapleLeafMakers]

Hi @nateb16 it looks like you're missing the required metadata file, check out the wiki for more info: https://github.com/VoronDesign/VoronUsers/wiki/How-to-build-a-metadata.yml-file