Changes

tmf: Fix {I}TableColumnDescriptor @since version

Since commit e87e00cd97, there was an Eclipse build error pertaining to
the previous version used. Apply the quick fix proposed by the IDE.

Fix the Eclipse formatting while editing these.

Change-Id: Ice7c48d2f7afd48dd97aea0abaf1c90648c2befb
Signed-off-by: Marco Miller <marco.miller@ericsson.com>
Reviewed-on: https://git.eclipse.org/r/c/tracecompass/org.eclipse.tracecompass/+/200718
Tested-by: Bernd Hufmann <bernd.hufmann@ericsson.com>
Reviewed-by: Bernd Hufmann <bernd.hufmann@ericsson.com>
Reviewed-by: Patrick Tasse <patrick.tasse@gmail.com>