Add multiple objects in a scene, image tracking and location based markers

[monkeyK1n9]

I really like the work you have put in. Could you add the possibility to include multiple objects in a scene. "model" property becoming an array of strings and there are individually tracked

For image tracking, if the user provides an image, the object appears when the camera meets the image.

For location based, ehen the user provides a location, the component computes the user's location compared to the object's and when it fits a minimum required, the object appears.

Thanks.