Add Query Editor API to sqlops.proposed (#1196)

* add support query editor API

* remove sqlops.proposed.d.ts in sp_whoIsActive

* address comments

* add catch error when connect

src/sql/workbench/api/node/extHostQueryEditor.ts

@@ -0,0 +1,29 @@
+/*---------------------------------------------------------------------------------------------
+ *  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 { IMainContext } from 'vs/workbench/api/node/extHost.protocol';
+import { ExtHostQueryEditorShape, SqlMainContext, MainThreadQueryEditorShape } from 'sql/workbench/api/node/sqlExtHost.protocol';
+import * as sqlops from 'sqlops';
+import * as vscode from 'vscode';
+
+export class ExtHostQueryEditor implements ExtHostQueryEditorShape  {
+
+	private _proxy: MainThreadQueryEditorShape;
+
+	constructor(
+		mainContext: IMainContext
+	) {
+		this._proxy = mainContext.getProxy(SqlMainContext.MainThreadQueryEditor);
+	}
+
+	public $connect(fileUri: string, connectionId: string): Thenable<void> {
+		return this._proxy.$connect(fileUri, connectionId);
+	}
+
+	public $runQuery(fileUri: string): void {
+		return this._proxy.$runQuery(fileUri);
+	}
+}