Layer grid code (#5029)

* layer grid

* errors; edit data still not showing up

* fix edit data

* fix tab spaces

src/sql/workbench/parts/grid/common/interfaces.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.
+ *--------------------------------------------------------------------------------------------*/
+
+import { ISlickColumn, VirtualizedCollection } from 'angular2-slickgrid';
+
+export interface IGridDataSet {
+	dataRows: VirtualizedCollection<{}>;
+	columnDefinitions: ISlickColumn<any>[];
+	resized: any; // EventEmitter<any>;
+	totalRows: number;
+	batchId: number;
+	resultId: number;
+	maxHeight: number | string;
+	minHeight: number | string;
+}
+
+export enum SaveFormat {
+	CSV = 'csv',
+	JSON = 'json',
+	EXCEL = 'excel',
+	XML = 'xml'
+}
+
+export interface IGridInfo {
+	batchIndex: number;
+	resultSetNumber: number;
+	selection: Slick.Range[];
+	gridIndex: number;
+	rowIndex?: number;
+}
+export interface ISaveRequest {
+	format: SaveFormat;
+	batchIndex: number;
+	resultSetNumber: number;
+	selection: Slick.Range[];
+}