add initial prototype

Author: deyaaeldeen

tools/azsdk-cli/Azure.Sdk.Tools.Cli/Commands/SharedOptions.cs

@@ -26,6 +26,7 @@ public static class SharedOptions
             typeof(PipelineTestsTool),
             typeof(QuokkaTool),
             typeof(ReadMeGeneratorTool),
+            typeof(SampleGeneratorTool),
             typeof(ReleasePlanTool),
             typeof(ReleaseReadinessTool),
             typeof(SdkBuildTool),