Resolve "New ice cover friction law for KHIONE"

NEWS.txt

documentation/khione/user/latex/4_ice_cover.tex

examples/khione/ice_cover-t2d/f2d_hydro_v01_3.slf

examples/khione/ice_cover-t2d/f2d_hydro_v02_3.slf

examples/khione/ice_cover-t2d/f2d_hydro_v03_3.slf

examples/khione/ice_cover-t2d/f2d_hydro_v04_3.slf

examples/khione/ice_cover-t2d/fce_cover_v01_3.slf

examples/khione/ice_cover-t2d/fce_cover_v02_3.slf

examples/khione/ice_cover-t2d/fce_cover_v03_3.slf

examples/khione/ice_cover-t2d/fce_cover_v04_3.slf

examples/khione/ice_cover-t2d/vnv_ice_cover-t2d.py

sources/khione/khione.dico

sources/khione/source_hydro_icover.f