Add lua-bindings for AmbientLight,BaseLight,DirectionLight,PointLight,SpotLight and related test case
Merge branch 'v3' of https://github.com/cocos2d/cocos2d-x into v3_new_spine
Fix compile error triggered by UIHelper.cpp
Remove some comments
Merge pull request #8831 from samuele3hu/v3_new_spine

Add lua-bindings for Light and test case and fix compile error triggered by UIHelper.cpp