Added tests and doc for Core.Plugins.CommonTools. Removed undefined resource reference in PipingOutputProperties. Renamed UrlProperties to WebLinkProperties to match its data type. Related to Issue [WTI-190]git-svn-id: https://repos.deltares.nl/repos/WettelijkToetsInstrumentarium/trunk@1953 5a3db67b-de53-47b5-99c8-a1c30a6650e2Former-commit-id: d8a969d182a2b05de81781c3848295d5398edb9e