Copy drawmesh only once to status nodes after initialization (should not be required on every update)
Copy drawmesh to the feature, modeling area and handle nodes, to also reuse the draw esh buffers

refs #1311

git-svn-id: http://www.openflipper.org/svnrepo/OpenFlipper/branches/Free@15929 383ad7c9-94d9-4d36-a494-682f7c89f535