Polygonsplitting enhanced (simplified Algorithm and faster)
Polygonsplitting enhanced (simplified Algorithm and faster)

CuttingEars returns result also when "looping through"
Made helper-classes public
Triangulation is now faster and easier to understand

JeremyAnsel/helix-toolkit,Iluvatar82/helix-toolkit,jotschgl/helix-toolkit,holance/helix-toolkit,helix-toolkit/helix-toolkit,smischke/helix-toolkit,chrkon/helix-toolkit