Use std::bitset

Signed-off-by: Ken Arroyo Ohori <g.a.k.arroyoohori@tudelft.nl>
Clean-up

Signed-off-by: Ken Arroyo Ohori <g.a.k.arroyoohori@tudelft.nl>
Mostly works

Signed-off-by: Ken Arroyo Ohori <g.a.k.arroyoohori@tudelft.nl>
Return polygons starting at their lexicographically smallest vertex

Signed-off-by: Ken Arroyo Ohori <g.a.k.arroyoohori@tudelft.nl>
Forgotten to copy string

Signed-off-by: Ken Arroyo Ohori <g.a.k.arroyoohori@tudelft.nl>