Implement property control and syncing between view and property control. Changed HBL context to wrap around a location and not the whole database, but still carries the database for syncing purposes. Related to Issue [WTI-1349] git-svn-id: https://repos.deltares.nl/repos/WettelijkToetsInstrumentarium/trunk@11826 5a3db67b-de53-47b5-99c8-a1c30a6650e2