Convert a png image to a vplot file
cd $GOPATH
git clone git@github.com:ricallinson/png2vplot.git ./src/github.com/ricallinson/png2vplot
cd ./src/github.com/ricallinson/png2vplot
go install
png2vplot -h
png2vplot ./fixtures/test.png ./test.vplot
png2vplot -x 12000 -y 6000 -p 100 ./fixtures/test.png ./test.vplot