Gaze system needs evaluation

[SimonDarksideJ]

Reality Collective - Reality Toolkit Bug Report

Describe the bug

By default, the gaze system is registered, then if controllers are detected it is destroyed. Likely this is a hangover from the HoloLens 1 days where there were no controllers and only gaze was used.

The Gaze Implementation needs evaluation to make it more fit for purpose and act like a controller itself, rather than an override embedded in the Input System.

Expected behavior

Gaze should only be active if it is added as a controller, either on the Camera or as a separate controller interface in the Input system

Actual behavior

Currently, the Gaze object is attached to the camera by default and then removed when a controller is detected