Create VBP_FormGlassTiles.frm

Added a new distortion filter that simulates looking at the image through glass tiles.

Also, here is an icon I created for the menu if you wish to use it:
![glass_tiles](https://cloud.githubusercontent.com/assets/4359780/3072938/7a40f906-e2d2-11e3-9095-7bc9643988e8.png)