Add the "delete" feature for the "Jump"

Back/skydiveLogs-api.DomainService/Repositories/IJumpRepository.cs

@@ -6,5 +6,7 @@ namespace skydiveLogs_api.DomainService.Repositories
     public interface IJumpRepository : IRepository<Jump>
     {
         IEnumerable<Jump> GetAll(User user);
+
+        bool DeleteById(int id);
     }
-}
+}