added ClippingRectangleNode
added ClippingRectangleNode Test
reset  wp8 project files
added CCClippingRectangleNode.cpp to CMakeList
Merge pull request #8706 from SunLightJuly/add_ClippingRectangleNode

Add clipping rectangle node
[ci skip] Update CHANGELOG
Merge branch 'v3' into workBranch