CMake compilation for the C++ / CUDA code

[Marc-Demoustier]

• [x] Create CMake files to compile the cameras and gpufit code
• [x] Separate gpufit between multiple files
• [x] Add to the CI the library compilation
• [x] Add a maven option to generate the headers file
• [x] Add a maven option to compile the C++ / CUDA code
• [x] Add a clang-format file to follow a consistent coding style
• [x] Add libs file to automatic releases (Windows: camera only, Linux: gpufit only
• [x] Update README file with instructions on how to build the project

Close #3 (Compilation with CMake) Close #4 (Separation of gpufit in multiples files) Close #6 (Compilation of the libs is compatible between different OS (Camera libs are only on Windows, and GPU operations are not compatible with MacOS)

[Marc-Demoustier]

Close #4 There are still many things that can be updated in the code, but at least, there is now a concrete separation between functionalities