Azure SQL Hybrid Cloud Toolkit Notebooks Extension Command (#13286)

* added extension folder incomplete

* WIP extension progress

* notebook finally opens in side panel

* notebook now opens via notebook extension

* html file spaces restored

* package json fixed

* fixed vscode import issue

* more cleanup

* remove git stuff

* placeholder icon logos added

* fixed gulpfile

* cleanup changes

* vscode import fixed

* fixed main and yarn.lock

* added provided notebooks view

* formatting for package.json

* removed first command as its not necessary

* fixed notebook typo

* readded spaces

extensions/azurehybridtoolkit/notebooks/hybridbook/Components/ADP/SqlPackageWrapper/Payload.cs

@@ -0,0 +1,38 @@
+namespace SqlPackageWrapper
+{
+    /// <summary>
+    /// The top-level object stored in the key vault for an import/export operation.
+    /// </summary>
+    public sealed class Payload
+    {
+        /// <summary>
+        /// The version of sqlpackage to use for performing the import/export operation.
+        /// </summary>
+        public string SqlPackageVersion { get; set; }
+
+        /// <summary>
+        /// The type of sqlpackage action to perform.
+        /// </summary>
+        public ActionType Action { get; set; }
+
+        /// <summary>
+        /// The logical server name to export from or import to.
+        /// </summary>
+        public string LogicalServerName { get; set; }
+
+        /// <summary>
+        /// The database name to export from or import to.
+        /// </summary>
+        public string DatabaseName { get; set; }
+
+        /// <summary>
+        /// The server admin username.
+        /// </summary>
+        public string Username { get; set; }
+
+        /// <summary>
+        /// The server admin password.
+        /// </summary>
+        public string Password { get; set; }
+    }
+}