added forward mapping projections support and the winkel-tripel projection.  need to fix dead areas with bilinear interpolation, and need to speed up the time it takes to generate the lookup table
added forward mapping projections support and the winkel-tripel projection.  need to fix dead areas with bilinear interpolation, and need to speed up the time it takes to generate the lookup table

shaunlebron/blinky,khonkhortisan/blinky,khonkhortisan/blinky,shaunlebron/blinky,khonkhortisan/blinky,shaunlebron/blinky