added method to requisiton supplies.

Models/ServiceRecord/ServiceRecordInput.cs

@@ -10,6 +10,7 @@
         public decimal Cost { get; set; }
         public string Notes { get; set; }
         public List<UploadedFiles> Files { get; set; } = new List<UploadedFiles>();
+        public List<SupplyUsage> Supplies { get; set; } = new List<SupplyUsage>();
         public ServiceRecord ToServiceRecord() { return new ServiceRecord { Id = Id, VehicleId = VehicleId, Date = DateTime.Parse(Date), Cost = Cost, Mileage = Mileage, Description = Description, Notes = Notes, Files = Files }; }
     }
 }