Swing: support word wrapping on SwingScoutLabelField

Change-Id: Iff08cb2f3dd5d6ce6e7df91821fe516445dab2a3
Signed-off-by: Michael Rudolf <Michael.Rudolf@bsiag.com>
Reviewed-on: https://git.eclipse.org/r/38015
Tested-by: Hudson CI
Reviewed-by: Judith Gull <jgu@bsiag.com>