Custom embedding generator

Author: alkampfergit

src/KernelMemory.Extensions.ConsoleTest/Samples/CustomSearchPipelineBase.cs

@@ -73,6 +73,7 @@ public async Task RunSample2()
 
         services.AddSingleton(coereCommandRagQueryExecutorConfiguration);
         services.AddSingleton<RawCohereClient>();
+        services.AddSingleton<IPromptStore>(NullPromptStore.Instance);
         services.AddSingleton<CohereCommandRQueryExecutor>();
         services.AddHttpClient();