Add individual note test to unit tests.
Add individual note test to unit tests.

It does not pass yet because the modified dates of a note magically get
incremented by one hour inside snowy.

syskill/snowy,syskill/snowy,jaredjennings/snowy,jaredjennings/snowy,jaredjennings/snowy,widox/snowy,leonhandreke/snowy,GNOME/snowy,widox/snowy,leonhandreke/snowy,nekohayo/snowy,NoUsername/PrivateNotesExperimental,NoUsername/PrivateNotesExperimental,sandyarmstrong/snowy,nekohayo/snowy,sandyarmstrong/snowy,jaredjennings/snowy,GNOME/snowy