Added the BeyondFacts Lab as a prototype (#1175)

app/MindWork AI Studio/Assistants/BeyondFactsLab/BflAddressForm.cs

@@ -0,0 +1,17 @@
+namespace AIStudio.Assistants.BeyondFactsLab;
+
+/// <summary>
+/// How the BeyondFacts Lab addresses the person in languages which tell a formal address from an informal one, such as German.
+/// </summary>
+public enum BflAddressForm
+{
+    /// <summary>
+    /// The formal address, such as "Sie" in German. The texts of AI Studio use it as well.
+    /// </summary>
+    FORMAL,
+
+    /// <summary>
+    /// The informal address, such as "du" in German.
+    /// </summary>
+    INFORMAL,
+}