Stereoscopy/Create a WebApp

Introduction
In this learning resource we will create a Stereoscopy AppLSAC that is able to create a stereoscopic image from two single images for left and right eye.

Major Steps

 * Load two images with FileReader into the browser and store the images into a canvas for the left and the right eye.
 * allow image alignment via drag and drop on a canvas with a transparent view (overlay) for the left and right image.
 * generate after alignment a stereoscopic image for the left and right eye.
 * generate after alignment also a anaglyph 3D image for the left and right eye
 * create a save button for anaglyph and stereoscopy image.