307: VertextSnapIter

remove RewindZero() , GetVertextIter() ,currentIterIndex from VertexSnap
308
Merge branch 'v_snapIter' into v_mini01
309: VertexData ctor
310: refactor
311:Painter
312: SimpleRect
313:update SimpleRect
314: VertexStorage
316: Stoke
317: remove iteratorIndex from PathStorage
318: remove IVertexDest interface
319
320: VertexStoreSnap

renamed from VertexSnap
322: refactor
323: change interface IScanline to abstract class
324: VertexStorage ctor
327: ScanlineToBitmapRenderer

renamed from ScanlineRenderer
328: LineAAVertex.IsDiff
329: LineAAVertexSequence