splitPolygonChain:
- new parameter currPolyVert0to1 from doSplit ( parameter: inLow2High )
- now new segments go into monoSubPolyChains
normalize_segment_orientation: integrated into assignDepths
soll... renamed
splitPolygonChain: experimental extension for inverted winding order incl. tests
splitPolygonChain, normalize_monotone_chains: experimental extension for inverted winding order completed, commented out again
Version 1.2; splitPolygonChain: refactored, explained