Bug 548333 - ReadOnlyConfiguration should only allow to link column DMRs

* Adapt the ColumnConfigurationDMRRendererReferenceService to work for
any VTableColumnConfiguration
* Add custom renderer for VReadOnlyConfigurations that uses the
reference service

Change-Id: I425f1ba742b38960267a1015f43e1a95ad6a4a0d
Signed-off-by: Lucas Koehler <lkoehler@eclipsesource.com>
7 files changed