369255: Tables: Reorganisation of Columns leads to LookupCall executions
for each Row 

Change-Id: I0a12d0e610ebfee1d511921ab85fc5aa010010de
Task-Url: https://bugs.eclipse.org/bugs/show_bug.cgi?id=369255
Reviewed-on: https://git.eclipse.org/r/34795
Tested-by: Hudson CI
Reviewed-by: Daniel Wiehl <daniel.wiehl@bsiag.com>
Bug 446847 - RAP: Spacing between application toolbar and view area.
https://bugs.eclipse.org/bugs/show_bug.cgi?id=446847

Introduced a separate container for the desktop to contain the toolbar
and view area so that those two components can be laid out independently
from the overall layout of main application content and form toolbar.

Change-Id: I523695c7e314927f00c6533bc5aa39db688895a4
Reviewed-on: https://git.eclipse.org/r/34789
Tested-by: Hudson CI
Reviewed-by: Andreas Hoegger <Andreas.Hoegger@bsiag.com>