NC demolocation should include sqlite dirs in mapsets
As mention in #1358, the sqlite driver does not work by default in grass7 if there is no sqlite directory in the mapset. When the user creates a new mapset, such a directory is created automatically. However, the NC demo data for GRASS7 at  does not contain such directories in the user1 and the landsat mapsets.
While it would probably be preferrable to alter the sqlite driver so that it creates the directory if needed, it might be worthwile, in the meantime, to include these directories to avoid bad first time experiences for new users.