v0.2.3

• Update to ThreeJs r124
• Added the ability to highlight points (This is disabled by default).
  • To highlight a point, set the enablePointHighlighting uniform to true.
  • Pass in a 3d vector highlightedPointCoordinate uniform in world coordinates.
  • Optionally change the scale of the highlighted pointed by setting the highlightedPointScale uniform ( between [0,1])
  • Optionally change highlightedPointColor uniform to the color of your choosing ( r,g,b,a)