Bug: 513735 - Initial contribution of launch configuration view

The initial contribution contains a direct port of the current state of
the com.wamas.ide.launchview plugin in https://github.com/mduft/lcdsl

Change-Id: I793c9e6fd9ed59b6c590017e4c8a779d99c483ce
Signed-off-by: Markus Duft <markus.duft@ssi-schaefer.com>
Reviewed-on: https://git.eclipse.org/r/c/platform/eclipse.platform.debug/+/93689
Tested-by: Platform Bot <platform-bot@eclipse.org>
Reviewed-by: Lars Vogel <Lars.Vogel@vogella.com>