Added the Model Comparison assistant for blind comparisons of two models (#1009)

Co-authored-by: Thorsten Sommer <SommerEngineering@users.noreply.github.com>

app/MindWork AI Studio/Assistants/ModelComparison/ModelComparisonVote.cs

@@ -0,0 +1,15 @@
+namespace AIStudio.Assistants.ModelComparison;
+
+/// <summary>
+/// What the voter chose while the answers were still shown without the names of the models.
+/// </summary>
+/// <remarks>
+/// This names a column on the screen, not a model. Which model stood in a column is what
+/// ModelComparisonPresentationOrder says.
+/// </remarks>
+public enum ModelComparisonVote
+{
+    COLUMN_A,
+    COLUMN_B,
+    TIE,
+}