Add an endpoint to call the lof of jumps by page.

Back/skydiveLogs-api.Infrastructure/DropZoneRepository.cs

@@ -48,6 +48,11 @@ namespace skydiveLogs_api.Infrastructure
             return _col.FindById(new BsonValue(id));
         }
 
+        public int GetCount()
+        {
+            throw new System.NotImplementedException();
+        }
+
         public bool Update(DropZone updatedDz)
         {
             return _col.Update(updatedDz);