rename resources used by ./scripts/tests/CalDAV/sharing-groups.xml


git-svn-id: https://svn.calendarserver.org/repository/calendarserver@13861 e27351fd-9f3e-4f54-a53b-843176b1656c
add more test suites to ./scripts/tests/CalDAV/sharing-groups.xml


git-svn-id: https://svn.calendarserver.org/repository/calendarserver@13862 e27351fd-9f3e-4f54-a53b-843176b1656c