Cuda implementation of Normalize() function

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We have CPU implementation of **Normalize**() function in `src/image_function.h` and `src/image_function.cpp` files. We want to add Cuda implementation of the same function. Please put new code in `src/cuda/image_function_cuda.cuh` and `src/cuda/image_function_cuda.cu` files. Things which we need to do:
1. Copy 4 function declaration from `src/image_function.h` to `src/cuda/image_function_cuda.cuh`
2. Copy first 3 function implementation from `src/image_function.cpp` to `src/cuda/image_function_cuda.cu`
3. Add Cuda kernel called `normalizeCuda` into unnamed namespace at the top of `src/cuda/image_function_cuda.cu` file
4. Add forth function implementation by following **LookupTable()** code logic

Compare the Normalize declarations in src/image_function.h with the implementations in src/image_function.cpp, then read the LookupTable() logic in src/cuda/image_function_cuda.cu. Work in src/cuda/image_function_cuda.cuh and src/cuda/image_function_cuda.cu, adding the requested declarations, implementations, and normalizeCuda kernel. Done means all four Normalize functions have CUDA counterparts following the specified CPU and LookupTable patterns.

Written by the indexing model from the issue text.