Presentation of the computational code

This code is used to compare different reaction-diffusion schemes for the FKPP equation. Some well-balanced scheme are implemented and compared with more classical ones to see if they better capture some long time propagation speed. It is implemented in Julia using GPU for better performances. Indeed, the well-balanced schemes are more computationaly demanding but more precise. Because we need to capture long time front propagation speed, the space domain is huge and using GPU helps to get the results.