Get a subdirectory with specified _path in the directory.
The subdirectory will be returned even if it does not exist - it can be created with the create() method.
Subdirectory with specified _path.
VFSNotFoundException if this VFSDir does not exist or the subdirectory is in a nonexistent subdirectory.
VFSInvalidPathException if the _path is invalid.
See Implementation
Get a subdirectory with specified _path in the directory.
The subdirectory will be returned even if it does not exist - it can be created with the create() method.