Update `bindings-generator` submodule and  add auto-binding for the `RichText`
Merge branch 'develop' of https://github.com/cocos2d/cocos2d-x into develop_new_fix
Update `bindings-generator` submodule
Merge pull request #5757 from samuele3hu/develop_new_fix

Update `bindings-generator` submodule and add auto-binding for the `RichText`