add Base Enricher Interface ...

Interfaces/IXBaseEnricher.cs

@@ -0,0 +1,21 @@
+using System.Collections.Generic;
+using System.Threading;
+using System.Threading.Tasks;
+
+namespace xDataService.Interfaces
+{
+    public interface IXBaseEnricher<TSource, TDest>
+    {
+        Task EnrichAsync(
+            TSource source,
+            TDest destination,
+            CancellationToken cancellationToken = default
+        );
+
+        Task EnrichRangeAsync(
+            IEnumerable<TSource> sources,
+            IEnumerable<TDest> destinations,
+            CancellationToken cancellationToken = default
+        );        
+    }
+}