Organising the project

I separated brain.c and brain.h into five new files: data_acquisition.c, data_acquisition.h, swmm_interfacing.c, swmm_interfacing.h and main.c. I also removed some unused libraries, and then commented each "include" line with itens that are being used by the code in the respective library. And last, I placed in code files and header files (including forecast.c and forecast.h) what should be in each file, and took off what shouldn't. I intend with this update to improve the project's efficiency, maintainability, reusability and readability.