[Sdk] provide full PromptOptions for SwitchSkillDialogOptions (#2717)

sdk/csharp/libraries/microsoft.bot.builder.solutions/Skills/Dialogs/SwitchSkillDialog.cs

@@ -1,4 +1,7 @@
-using System;
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+using System;
 using System.Threading;
 using System.Threading.Tasks;
 using Microsoft.Bot.Builder.Dialogs;
@@ -57,7 +60,7 @@ private async Task<DialogTurnResult> PromptToSwitchAsync(WaterfallStepContext st
             await _skillIdAccessor.SetAsync(stepContext.Context, options.Skill.Id).ConfigureAwait(false);
             await _lastActivityAccessor.SetAsync(stepContext.Context, stepContext.Context.Activity).ConfigureAwait(false);
 
-            return await stepContext.PromptAsync(_confirmPromptId, new PromptOptions() { Prompt = options.Prompt }).ConfigureAwait(false);
+            return await stepContext.PromptAsync(_confirmPromptId, options).ConfigureAwait(false);
         }
 
         // Ends this dialog, returning the prompt result.

sdk/csharp/libraries/microsoft.bot.builder.solutions/Skills/Dialogs/SwitchSkillDialogOptions.cs

@@ -1,9 +1,13 @@
-using Microsoft.Bot.Builder.Solutions.Skills.Models.Manifest;
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+using Microsoft.Bot.Builder.Dialogs;
+using Microsoft.Bot.Builder.Solutions.Skills.Models.Manifest;
 using Microsoft.Bot.Schema;
 
 namespace Microsoft.Bot.Builder.Solutions.Skills.Dialogs
 {
-    public class SwitchSkillDialogOptions
+    public class SwitchSkillDialogOptions : PromptOptions
     {
         /// <summary>
         /// Initializes a new instance of the <see cref="SwitchSkillDialogOptions"/> class.
@@ -17,7 +21,5 @@ public SwitchSkillDialogOptions(Activity prompt, SkillManifest manifest)
         }
 
         public SkillManifest Skill { get; set; }
-
-        public Activity Prompt { get; set; }
     }
 }