Store the image bitmaps in MyWorkWindow in the OpenGL case

Change-Id: I1acac06f076a4f8173929a0fe0c0d9eaf6b8d1ff
More hacking on the 'icontest' test program

Use correct aspect ratio for the images.

Change-Id: I99c676c8c843c48633b5f17fd9333d0e0af4753f