wip/hs-chalkboard 0.2 NetBSD

Chalkboard is a Haskell hosted Domain Specific Language (DSL) for image generation and processing. The basic structure is a chalk board, a two-dimensional canvas of values, typically colors. Chalkboard provides the usual image processing functions (masking, overlaying, function mapping, cropping, warping, rotating) as well as a few more unusual ones. Images can be imported into Chalkboard, as first-class color chalk boards. Chalkboard also provides combinators for drawing shapes on directly on boards. The system is based loosely on PAN, but the principal image type, a Board, is abstract.