Preserve Connection Position on Type Update

On type update connections for the updated type where added at the end
of the connection list. With this change the position is preserved which
results in less changes to XML files and more stable git commits.

plugins/org.eclipse.fordiac.ide.model.commands/src/org/eclipse/fordiac/ide/model/commands/change/AbstractUpdateFBNElementCommand.java

@@ -426,6 +426,7 @@ protected void replaceConnection(final Connection oldConn, final IInterfaceEleme
 			cmd.setDestination(dest);
 			cmd.setVisible(oldConn.isVisible());
 			cmd.setArrangementConstraints(oldConn.getRoutingData());
+			cmd.setElementIndex(fbn.getConnectionIndex(oldConn));
 			reconnCmds.add(cmd);
 		}
 	}