Sprite3DTest.lua:
Add Sprite3DWithSkinTest
Add AttachmentTest
Add Sprite3DReskinTest
Add Sprite3DMirrorTest
Add Sprite3DHitTest
Finished Sprite3DHitTest
Sprite3DHitTest use BoundingBox
Merge branch 'v3_new' into v3

Conflicts:
	tests/lua-tests/src/Sprite3DTest/Sprite3DTest.lua
Fixed getCosOuterAngle errors
Merge pull request #136 from songchengjiang/new_v3

Fixed CosOuterAngle error