GCol for non-DIMACS graphs using default dvo

05-07-00.txt we can draw, solve and colour

100-20-00.txt try and colour then look at 100-20-00-6col.txt and 100-20-00-7col.txt

100-15-00.txt try to colour and look at m=5 with result 100-15-00-5col.txt

28/10/2015