add obb by default
remove dependence of CoreGraphics for on mac
Merge pull request #8107 from minggo/mac-remove-unneeded-lib

[ci skip]remove dependence of CoreGraphics for on mac
deal the length problem!
Merge pull request #132 from lvlonggame/v3

Deal read string length problem!
remove unused resource
Merge branch 'v3' of https://github.com/super626/cocos2d-x into v3
Merge pull request #8106 from super626/v3

add OBBs to OBB collision test by default, Fix 0.1 version static model load bug and remove unused resource