Adjusted Flying Agent Client header to have correct copyright details

dfall_ws/src/dfall_pkg/include/nodes/FlyingAgentClient.h

+//    Copyright (C) 2019, ETH Zurich, D-ITET, Paul Beuchat
 //    Copyright (C) 2017, ETH Zurich, D-ITET, Paul Beuchat, Angel Romero, Cyrill Burgener, Marco Mueller, Philipp Friedli
 //
 //    This file is part of D-FaLL-System.

dfall_ws/src/dfall_pkg/src/nodes/FlyingAgentClient.cpp

-//    Copyright (C) 2019, ETH Zurich, D-ITET, Paul Beuchat, Angel Romero, Cyrill Burgener, Marco Mueller, Philipp Friedli
+//    Copyright (C) 2019, ETH Zurich, D-ITET, Paul Beuchat
+//    Copyright (C) 2017, ETH Zurich, D-ITET, Paul Beuchat, Angel Romero, Cyrill Burgener, Marco Mueller, Philipp Friedli
 //
 //    This file is part of D-FaLL-System.
 //