Add dependency to bottom friction validator for param.nml

[VHernaman]

You already have an awesome validator for bottom friction in param.nml, but it makes sense to add one more here because the bottom friction approach you use also turns on/off the wave boundary formulation layer (iwbl) and sets the approach

if manning.gr3 used, then nchi=-1 and iwbl=0;
if drag.gr3 used, then nchi=0 and iwbl=0;
if rough.gr3 is used, then nchi=1 and iwbl=1 (modified Grant-Madsen formulation) or 2 (Soulsby 1997).

(I typically use Grant-Madsen formulation but be good to give the option to have 1 or 2 in case the SCHISM developers bring on new approaches in the future).