Overwork CMake of the Phase Retrieval Class implementation

[SimeonEhrig]

• restructure project
• add interface target for include folder
• move source files to src folder
• add new function to copy python scripts to same location like a target (e.g. python binding)

[SimeonEhrig]

@afif-ishamsyah Can you please test it on windows. In special this change: https://github.com/ComputationalRadiationPhysics/student_project_python_bindings/blob/01223e083d2cd699182aa0dad4230a7b66bb1cd8/cuda_phase-retrieval_class/cmake/add_msvc_poperties.cmake#L8-L15

[afif-ishamsyah]

I need to uncomment that whole part in windows because the example files was not exist in "src" folder. But other than that everything is fine.

I will merge it with the target branch and will fix this alongside other imporvements