IDE: package graph: expand nodes

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@41941 4005530d-fff6-0310-9dd1-cebe43e6787f
lazutils: clean up

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@41942 4005530d-fff6-0310-9dd1-cebe43e6787f
IDE: package graph: update info when selecting a TV node

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@41943 4005530d-fff6-0310-9dd1-cebe43e6787f