add default images to TestCpp
add more launch images
Merge pull request #9416 from andyque/fixLanchImages_v2

Fix lanch images v2
[ci skip] Update CHANGELOG
[ci skip] Update CHANGELOG
Merge branch 'v2_luacompile' of https://github.com/samuele3hu/cocos2d-x; branch 'v2' of https://github.com/cocos2d/cocos2d-x into v2_luacompile