Add support to save publish profile (#1844)

* Add support to save publish profile

* Address comments

* Update dacfx nuget package version

* Fix test

* Address comments

* Resolve package.props conflict

* Add content verification in test and use handler methods instead of try-catch

* Address comments

src/Microsoft.SqlTools.ServiceLayer/DacFx/Contracts/SavePublishProfileRequest.cs

@@ -0,0 +1,53 @@
+//
+// 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.Generic;
+using Microsoft.SqlTools.Hosting.Protocol.Contracts;
+using Microsoft.SqlTools.ServiceLayer.Utility;
+
+namespace Microsoft.SqlTools.ServiceLayer.DacFx.Contracts
+{
+    /// <summary>
+    /// Parameters for a DacFx save publish profile request.
+    /// </summary>
+    public class SavePublishProfileParams
+    {
+        /// <summary>
+        /// Gets or sets the profile path
+        /// </summary>
+        public string ProfilePath { get; set; }
+
+        /// <summary>
+        /// Gets or sets name for database
+        /// </summary>
+        public string? DatabaseName { get; set; }
+
+        /// <summary>
+        /// Gets or sets target connection string
+        /// </summary>
+        public string? ConnectionString { get; set; }
+
+        /// <summary>
+        /// Gets or sets SQLCMD variables for deployment
+        /// </summary>
+        public IDictionary<string, string>? SqlCommandVariableValues { get; set; }
+
+        /// <summary>
+        /// Gets or sets the options for deployment
+        /// </summary>
+        public DeploymentOptions? DeploymentOptions { get; set; }
+    }
+
+    /// <summary>
+    /// Defines the DacFx save publish profile request type
+    /// </summary>
+    class SavePublishProfileRequest
+    {
+        public static readonly RequestType<SavePublishProfileParams, ResultStatus> Type =
+            RequestType<SavePublishProfileParams, ResultStatus>.Create("dacfx/savePublishProfile");
+    }
+}
+
+
+