Added empty kernel and hook up with Kernel drop down (#3173)

* Initial toolbar work
- This is in-progress and needs additional fixes

* Resolve PR comments

* Added empty kernel and hook up with Kernel dropdown

* Resolve PR comments

src/sql/parts/notebook/cellViews/codeActions.ts

@@ -0,0 +1,30 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the Source EULA. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+import { Action } from 'vs/base/common/actions';
+import { TPromise } from 'vs/base/common/winjs.base';
+import { SelectBox } from 'sql/base/browser/ui/selectBox/selectBox';
+import { IContextViewProvider } from 'vs/base/browser/ui/contextview/contextview';
+import { ISelectBoxOptions } from 'vs/base/browser/ui/selectBox/selectBox';
+import { TaskHistoryViewlet } from 'sql/parts/taskHistory/viewlet/taskHistoryViewlet';
+
+export class RunCellAction extends Action {
+	public static ID = 'jobaction.notebookRunCell';
+	public static LABEL = 'Run cell';
+
+	constructor(
+	) {
+		super(RunCellAction.ID, RunCellAction.LABEL, 'newStepIcon');
+	}
+
+	public run(context: any): TPromise<boolean> {
+		return new TPromise<boolean>((resolve, reject) => {
+			try {
+				resolve(true);
+			} catch (e) {
+				reject(e);
+			}
+		});
+	}
+}