cody: lvlgraph: edges

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@40272 4005530d-fff6-0310-9dd1-cebe43e6787f
cody: lvlgraph: smaller node captions

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@40273 4005530d-fff6-0310-9dd1-cebe43e6787f