Add print error norm inf between Vol initial and Vol finale + change the
bar output from '/' to '='.
Correct the approximation of laplacian and trasforn the 'indexfull'
function in a macro
Add -O3 cflag
Change the split Function in a macro + change the extern function
pvschama_core in a static inline function + comment some code in
out_boundary function because i think it's no longer usuful
Add the output of delta t at any iterations