Function clipInit

TheForceEngine/TFE_Polygon/polygon.cpp:1063–1070

	}
		
	void clipInit()
	{
		// Using ClipperLib::ioPreserveCollinear produces incorrect results, in the form of lines that should be clipped, due to
		// trying to preserve the collinear points. So we have to handle that by post-processing the results.
		// Using ClipperLib::ioStrictlySimple can cause extra vertices to be inserted, causing errors in the process. So instead,
		// clipping is performed and then simplification occurs afterward.
		s_clipper = new ClipperLib::Clipper(ClipperLib::ioReverseSolution);
	}

	void clipDestroy()
	{