Move unused forked code to external directory (#1192)

* Move unused forked code to external directory

* Fix SLN build errors

* Add back resource provider core since it's referenced by main resource provider project

* Update PackageProjects step of pipeline

external/Microsoft.SqlTools.DataProtocol.Contracts/Connection/ServerInfo.cs

@@ -0,0 +1,68 @@
+//
+// Copyright (c) Microsoft. All rights reserved.
+// Licensed under the MIT license. See LICENSE file in the project root for full license information.
+//
+
+namespace Microsoft.SqlTools.DataProtocol.Contracts.Connection
+{
+    /// <summary>
+    /// Contract for information on the connected SQL Server instance.
+    /// </summary>
+    public class ServerInfo
+    {
+        /// <summary>
+        /// The major version of the SQL Server instance.
+        /// </summary>
+        public int ServerMajorVersion { get; set; }
+
+        /// <summary>
+        /// The minor version of the SQL Server instance.
+        /// </summary>
+        public int ServerMinorVersion { get; set; }
+
+        /// <summary>
+        /// The build of the SQL Server instance.
+        /// </summary>
+        public int ServerReleaseVersion { get; set; }
+
+        /// <summary>
+        /// The ID of the engine edition of the SQL Server instance.
+        /// </summary>
+        public int EngineEditionId { get; set; }
+
+        /// <summary>
+        /// String containing the full server version text.
+        /// </summary>
+        public string ServerVersion { get; set; }
+
+        /// <summary>
+        /// String describing the product level of the server.
+        /// </summary>
+        public string ServerLevel { get; set; }
+
+        /// <summary>
+        /// The edition of the SQL Server instance.
+        /// </summary>
+        public string ServerEdition { get; set; }
+
+        /// <summary>
+        /// Whether the SQL Server instance is running in the cloud (Azure) or not.
+        /// </summary>
+        public bool IsCloud { get; set; }
+
+        /// <summary>
+        /// The version of Azure that the SQL Server instance is running on, if applicable.
+        /// </summary>
+        public int AzureVersion { get; set; }
+
+        /// <summary>
+        /// The Operating System version string of the machine running the SQL Server instance.
+        /// </summary>
+        public string OsVersion { get; set; }
+
+        /// <summary>
+        /// The Operating System version string of the machine running the SQL Server instance.
+        /// </summary>
+        public string MachineName { get; set; }
+    }
+}