Support for Android obb or data folder(commit from material files app)

[VirtualAstronaut]

Hello if possible can you add read or write access to data or obb folder. There is native File explorer that allows that here is commit for that. Thanks :D. https://github.com/zhanghai/MaterialFiles/commit/e356a9c5dc3f60d24a950e3d6f42018bf522c3e1