RPI + Cuda

[worktycho]

Im looking at mad technique using c++ templates for codegen to write openCL kernels and openGL ES shaders. (yes you can use openGL shaders for computation if you treat the textures and frame buffer as a byte array). The pi does't support openCL at the moment only openGL ES. At the moment I'm experimenting with the lighting thread as its reasonably self contained and slow on ARM but if I get it working then I'll use for the generator.