04: make DTSweepConstraint struct
05: remove Points[]

more direct to P0,P1 and P2
'Furry Ball' example reduce triangulate time about 100 ms!
06: remove  Neighbors

N0, N1, N2
13: Edge Marks
15: static style Comparator

and more explore
16: DTSweepEdgeEvent

convert from class to struct
17: merge Basin
20: CleanClone
Merge branch 'v_test'