Click Source Position is not Correct in AR

[EdwardLu2018]

Describe the bug
Click source position is not correct in AR.

To Reproduce
Steps to reproduce the behavior:

1. Go to some scene with a clickable object
2. Run python laser pointer program
3. Click on object
4. Laser's source position will not be updated to re-localized origin

[hi-liang]

arena-web-core/src/components/click-listener.js

Lines 26 to 40 in 2cb9f37

	const camera = document.getElementById('my-camera');
	const position = camera.getAttribute('position');
	const clickPos = ARENAUtils.vec3ToObject(position);
	const coordsData = ARENAUtils.setClickData(evt);
	if ('cursorEl' in evt.detail) {
	// original click event; simply publish to MQTT
	const thisMsg = {
	object_id: this.id,
	action: 'clientEvent',
	type: 'mousedown',
	data: {
	clickPos: clickPos,
	position: coordsData,

Need to go through all these clientEvents and change the position from camera position to world position (factors in rig position/rotation offsets)

[mwfarb]

We still need both camera position and object intersection position right? Just that both will be in world coordinates after the change?

[hi-liang]

The intersection position comes from AFRAME I think, which should already be in world coordinates. The commit above just fixes the camera positions