Feature/conform to edges #87
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…when adding constraints Ensure that triangulation conforms to constraints (fixed edges) For each fixed edge that is not present in the triangulation its midpoint is recursively added until the original edge is represented by a sequence of its pieces. New vertices are inserted. One important modification compared to Triangle: allow to flip already constraint edges and re-add them later. This produces a truly Delaunay triangulation as a result. Overlapping boundaries will work with conform-to-edge: test file added.
…original_edge->pieces
Fix re-mapping edge mapping and overlaps when erasing super-triangle
…lation (insertEdges)
Refactor enveloping point and small fix in predicates.h
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Add big new features: conforming Delaunay triangulation, resolving edge intersections.
Update README to document new features.