partial triang and recursive pyramid cooperation improved

recursive pyramids for support hyperlanes do not get triangulated
if theyy would be skipped in the partial triangulation
new input: signs

included in library and normaliz excutable
see Normaliz 2.9 docu for details
rec pyr: bound changed, verbose

lowered the bound for recursive pyramids from 50k to 20k
improved verbose output in the evaluation of recursive pyramids

verbose output at the beginnig changed