Context.getCrateDir() creates and returns the File for the
root of the crates for the application context. Any child directories
under the crates root in Context.getDataFile() is called
the crate directory.
For example:
/data/user/0/com.exmaple.app/crates/IAmCratedFolder/decentFiles
/data/user/0/com.exmaple.app/crates/IAmCratedFolder/decentDirs
Context.getCrateDir return the crate dir
--> /data/user/0/com.exmaple.app/crates/IAmCratedFolder
The crate dir
--> IAmCratedFolder
The decent directories or files are not crated folders
--> decentFiles, decentDirs
Test: atest CtsOsTestCases:android.os.storage.cts.StorageCrateTest
Bug: 141660526
Change-Id: If3ec1e121fb8f72bab5571d6190378e3ae208832
0d824d4161