Disable vr interaction controller when gamepad is disconnected

[RaananW]

This is mainly an issue of the oculus quest, thou it is a bug that needs to be fixed.

When a gamepad is disconnected, the vr interaction controller that was enabled here - https://github.com/BabylonJS/Babylon.js/blob/master/src/Cameras/VR/vrExperienceHelper.ts#L1411 is not being disabled. the gamepad is disposed without taking care of the interaction controller, which leads to multiple events executed when the gamepad is reconnected and vr mode is still on (again, at the moment only an issue with the oculus quest).

EDIT

The function that needs to be reverted is this - https://github.com/BabylonJS/Babylon.js/blob/master/src/Cameras/VR/vrExperienceHelper.ts#L1388 to take transportation into account as well.

[deltakosh]

Makes sense!