Feature/selectable card component (#1703)

* added selectable card

* creating new card type

src/sql/workbench/api/common/sqlExtHostTypes.ts

@@ -208,6 +208,8 @@ export interface CardProperties {
 	value?: string;
 	actions?: ActionDescriptor[];
 	status?: StatusIndicator;
+	selected?: boolean;
+	cardType: CardType;
 }
 
 export interface ActionDescriptor {
@@ -236,4 +238,9 @@ export enum DeclarativeDataType {
 	string = 'string',
 	category = 'category',
 	boolean = 'boolean'
+}
+
+export enum CardType {
+	VerticalButton  = 'VerticalButton',
+	Details = 'Details'
 }