SpriteSheet Generator

This is a simple sprite sheet generation tool.  It takes a collection of sprites, selected by the user and builds a sprite sheet based on the number of sprites per row, and the number of rows.  The actual size of the sprite sheet is calculated based on the number of sprites per row times the sprite width specified by the user.

While working on project Drakkhen Origins, I needed a better way to quickly assemble multiple sprites into one sheet, rather than trying to draw each sprite on the 64 pixel boundary.