Introduce trilinear interpolation, template, and texture indirection
dev temp test
ENH: introduce cuda primary projection
cleaning
Cleaning + fix primary projector
Introduce compton projector + restructuring
Update for linux and gate
Cleaning cuda forward projection
Remove cuda primary projection
Merge branch 'master' into hybrid_cuda

Conflicts:
	applications/rtkforwardprojections/rtkforwardprojections.cxx
	code/rtkCudaForwardProjectionImageFilter.cu
	code/rtkCudaForwardProjectionImageFilter.h
	code/rtkCudaForwardProjectionImageFilter.txx
Fix template types for CudaForwardProjectionImageFilter in iterative
reconstruction
Fix inplaceness of Cuda forward projection image filter