Added device count

include/CWrappers.cuh

src/c/Cuda/CWrappers.cu

src/c/Cuda/CWrappers.cuh

src/c/Cuda/CudaDeviceCount.cuh

src/c/CudaImageProcessor_dll.vcxproj

src/c/CudaImageProcessor_dll.vcxproj.filters

src/c/CudaImageProcessor_lib.vcxproj

src/c/CudaImageProcessor_lib.vcxproj.filters

src/c/CudaMex.vcxproj

src/c/CudaMex.vcxproj.filters

src/c/Mex/MexCommand.cpp

src/c/Mex/MexCommand.h

src/c/Mex/MexDeviceCount.cpp