Add methods used for the graph of the tunnel flights

Back/skydiveLogs-api.DomainBusiness/Interfaces/ITunnelFlightService.cs

@@ -17,8 +17,14 @@ namespace skydiveLogs_api.DomainBusiness.Interfaces
 
         IEnumerable<TunnelFlight> GetTunnelFlightByDates(string beginDate, string endDate);
 
+        IEnumerable<Statistic> GetTunnelFlightGroupByMonth(string beginDate, string endDate);
+
         void AddNewFlight(int tunnelId, TunnelFlight newFlight);
 
+        void DeleteTunnelFlightById(int id);
+
+        void UpdateTunnelFlight(int id, TunnelFlight updatedTunnelFlight);
+
         #endregion Public Methods
     }
 }