Move Repos to Repository Manager

[Yonet]

This issue is to keep track of all the spec repos that need to meet the IPR requirements and imported to the tool.

• dom-overlays

• hit-test

• layers

• webxr

• webxr-ar-module

• webxr-gamepads-module

• lighting-estimation

• anchors

• webxr-hands-input

• real-world-geometry

• performance-improvements

• geo-alignment

• spatial-favicons

• navigation

• computer-vision

[Yonet]

Repos added to the tool.