WebXR Gamepads Module - Level 1

2019-10-16: ACTION-2215 Joshue to review. ACTION-2216 Matthew to review.
2020-02-05: A question came up in review which needs to be posed to the group.
2021-04-07: OBE and been working on elsewheres.
2022-05-23: review request.
2022-05-25: Matthew to review.
2022-10-10: APA group comment posted on review request thread
2024-10-30: back to us at:https://github.com/immersive-web/webxr-gamepads-module/issues/61, Matthew will review it.