Add fit lines to cantilever-sim/v-dep

Add fit lines to cantilever-sim/v-dep

Also tab-separate (vs space separate) cantilever-sim/v-dep.d/*
with:

  for f in v_dep_*; do
    awk 'BEGIN{OFS="\t"}{print $1, $2}' "$f" > tmp && mv -f tmp "$f";
  done