Added stub for Polygon shape.
Added BodyTypePolygon
Added more stubs for Polygon.
Merge branch 'dev' into feature/polygon_shape
Merge branch 'dev' into feature/polygon_shape
Added polygon to project.
Merge branch 'dev' into feature/polygon_shape
Added triangle vertices placeholder in Polygon constructor.
Added implementation to convert PolyLines to PhysicsPolygons
Merge branch 'feature/polygon_shape' into dev
PhysicsPolygon works and is implemented in the sample.
Added getPolyLine for Polygon bodies.
Renamed vector helpers one last time.