Add a request type for formatting region request

Author: Kapil Borle

src/PowerShellEditorServices.Protocol/LanguageServer/FormattingScriptRegionRequest.cs

@@ -0,0 +1,54 @@
+//
+// Copyright (c) Microsoft. All rights reserved.
+// Licensed under the MIT license. See LICENSE file in the project root for full license information.
+//
+
+using System.Collections;
+using Microsoft.PowerShell.EditorServices.Protocol.MessageProtocol;
+using System.Collections.Generic;
+
+namespace Microsoft.PowerShell.EditorServices.Protocol.LanguageServer
+{
+    /// <summary>
+    /// Class to encapsulate the request type.
+    /// </summary>
+    class FormattingScriptRegionRequest
+    {
+        public static readonly
+            RequestType<FormattingScriptRegionRequestParams, FormattingScriptRegionRequestResult> Type =
+                RequestType<FormattingScriptRegionRequestParams, FormattingScriptRegionRequestResult>.Create("powerShell/getFormattingScriptRegion");
+    }
+
+    /// <summary>
+    /// Class to encapsulate the request parameters.
+    /// </summary>
+    class FormattingScriptRegionRequestParams
+    {
+        /// <summary>
+        /// Path of the file for which the markers are requested.
+        /// </summary>
+        public string fileUri;
+
+        /// <summary>
+        /// Hint character
+        /// </summary>
+        public string character;
+
+        /// <summary>
+        /// Character position
+        /// </summary>
+        public FilePosition filePosition;
+    }
+
+    /// <summary>
+    /// Class to encapsulate the result of marker request.
+    /// </summary>
+    class FormattingScriptRegionRequestResult
+    {
+        /// <summary>
+        /// A region in the script that encapsulates the given character/position which is suitable for
+        /// for formatting
+        /// </summary>
+        public ScriptRegion scriptRegion;
+    }
+}