-Update_ExB_shear_flow asks a step num
-this step num can be set to -1 when used in control
-the sign have been checked
-coherent with Hamett et al.
-the NL factor comp. is not optmized but fully detailed
-still has issue to verify McMillan et al. test

-removed the parameters only modules
-simplified the names of the input namelists

the fields have been adapted to Hermite-Laguerre basis and kr,kz fourier space and the non useful lines and scripts have been deleted.