Get a list of direct descendents of the given resource. Note that attempts to get a list of
children does not result in an error. Instead an error message is
logged and an empty ArrayList returned.
A ArrayList of VFSResources
The VFS FileName getURI method seems to have a bug in it where file: URIs will have 4 forward
slashes instead of 3.
Parameters: vfsURI - a normalized String representing the VFS URI