Add sample for server reports (#960)

* add sample for server reports

* add license and headers for all samples

* add new icons for sp_whoisactive

* address comments and use sqlops node module

samples/serverReports/src/extension.ts

@@ -0,0 +1,39 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the Source EULA. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+'use strict';
+
+import * as vscode from 'vscode';
+
+import ControllerBase from './controllers/controllerBase';
+import MainController from './controllers/mainController';
+
+let controllers: ControllerBase[] = [];
+
+export function activate(context: vscode.ExtensionContext): Promise<boolean> {
+    let activations: Promise<boolean>[] = [];
+
+    // Start the main controller
+    let mainController = new MainController(context);
+    controllers.push(mainController);
+    context.subscriptions.push(mainController);
+    activations.push(mainController.activate());
+
+    return Promise.all(activations)
+        .then((results: boolean[]) => {
+            for (let result of results) {
+                if (!result) {
+                    return false;
+                }
+            }
+            return true;
+        });
+}
+
+export function deactivate(): void {
+    for (let controller of controllers) {
+        controller.deactivate();
+    }
+}