TargetFramework update,

reference updates and added tests for Viewer

Shared/Models/Stateless/IInboundController.cs

@@ -0,0 +1,17 @@
+using Newtonsoft.Json.Linq;
+
+namespace OI.Metrology.Shared.Models.Stateless;
+
+public interface IInboundController<T>
+{
+
+    enum Action : int
+    {
+        Index = 0
+    }
+
+    static string GetRouteName() => nameof(IInboundController<T>)[1..^10];
+    T Data(string tooltype, JToken jsonbody);
+    T AttachFile(string tooltype, long headerid, string datauniqueid = "");
+
+}