Day 1 Progress

Based on the theme of the game (Relaxation) I decided to create an AR environment where the player can enhance their area with objects and sounds to help them relax and try to achieve a meditative state.

This is the first time I've tried to use grab-points with tracked hands, and I found two issues:

1. Godot-XR-Tools check for which hand is grabbing was too strict and only worked when the hand was driven by a controller. I put up a PR which checks the handedness of the source XRPositionalTracker
2. Godot-XR-Tools is tuned to work with the "aim" pose; and hand-trackers work best with "skeleton" pose (as they're creating a skeleton). My Godot XR Hand Pose Detector addon can synthesize an "aim" pose from the "skeleton" but it wasn't very precise and I had to tune it to make the grab-points work well.