libtracker-data: Fix tracker_turtle_reader_object_is_uri
libtracker-data: Fix tracker_turtle_reader_object_is_uri

Anonymous nodes are resources as well.

hoheinzollern/tracker,outofbits/tracker,hoheinzollern/tracker,hoheinzollern/tracker,hoheinzollern/tracker,outofbits/tracker,outofbits/tracker,hoheinzollern/tracker,outofbits/tracker,outofbits/tracker,outofbits/tracker,hoheinzollern/tracker,outofbits/tracker,hoheinzollern/tracker