Fix server compilation under windows

--HG--
branch : fix_compilation_windows

code/ryzom/server/src/entities_game_service/deposit.cpp

@@ -14,7 +14,7 @@
 // You should have received a copy of the GNU Affero General Public License
 // along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-
+#include <functional>
 #include "stdpch.h"
 #include "deposit.h"
 #include "player_manager/character.h"

code/ryzom/server/src/entities_game_service/phrase_manager/fg_prospection_phrase.cpp

@@ -15,7 +15,7 @@
 // along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 
-
+#include <functional>
 #include "stdpch.h"
 #include "fg_prospection_phrase.h"
 #include "nel/misc/common.h"