Insert sql bindings into Azure Functions (#1224)

* getting table name from a script

* add InsertSqlInputBindingOperation

* cleanup

* move azure functions stuff out of dacfx service

* cleanup

* add tests

* add another test

* cleanup

* add comments and connection string setting

* addressing comments

* change name to use add instead of insert

src/Microsoft.SqlTools.ServiceLayer/AzureFunctions/Contracts/AddSqlBindingRequest.cs

@@ -0,0 +1,60 @@
+//
+// 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.SchemaCompare.Contracts;
+using Microsoft.SqlTools.ServiceLayer.Utility;
+
+namespace Microsoft.SqlTools.ServiceLayer.AzureFunctions.Contracts
+{
+    /// <summary>
+    /// Binding types for sql bindings for Azure Functions
+    /// </summary>
+    public enum BindingType
+    {
+        input,
+        output
+    }
+
+    /// <summary>
+    /// Parameters for adding a sql binding
+    /// </summary>
+    public class AddSqlBindingParams
+    {
+        /// <summary>
+        /// Gets or sets the filePath
+        /// </summary>
+        public string filePath { get; set; }
+
+        /// <summary>
+        /// Gets or sets the binding type
+        /// </summary>
+        public BindingType bindingType { get; set; }
+
+        /// <summary>
+        /// Gets or sets the function name
+        /// </summary>
+        public string functionName { get; set; }
+
+        /// <summary>
+        /// Gets or sets the object name
+        /// </summary>
+        public string objectName { get; set; }
+
+        /// <summary>
+        /// Gets or sets the connection string setting
+        /// </summary>
+        public string connectionStringSetting { get; set; }
+    }
+
+    /// <summary>
+    /// Defines the Add Sql Binding request
+    /// </summary>
+    class AddSqlBindingRequest
+    {
+        public static readonly RequestType<AddSqlBindingParams, ResultStatus> Type =
+            RequestType<AddSqlBindingParams, ResultStatus>.Create("azureFunctions/sqlBinding");
+    }
+}