3dtiles. Add orthographic camera support to example

[Algorush]

Here I added new minified version of aframe-loader-tiles-component with orthographic camera support. This is a temporary version of the component until I add ortho-camera support to the three-loader-3dtiles library. But here the orthographic camera works just as well, I haven't noticed any issues yet.

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[kfarr]

outdated pr, closing