ADS changes for new engine edition (#7695)

* Sql on demand changes

* Formating files

* Removing features for new Engine Edition

* Fixing Restore & Backup issue. Adding support for multiple conditions per flavor

* tabifying

* Formating documents

* Work in progress

* Resolving comments

* Resolving comments.

* Fixing typo

src/sql/azdata.d.ts

@@ -429,6 +429,22 @@ declare module 'azdata' {
 		options: { [key: string]: any };
 	}
 
+	/**
+	 * The possible values of the server engine edition
+	 */
+	export enum DatabaseEngineEdition {
+		Unknown = 0,
+		Personal = 1,
+		Standard = 2,
+		Enterprise = 3,
+		Express = 4,
+		SqlDatabase = 5,
+		SqlDataWarehouse = 6,
+		SqlStretchDatabase = 7,
+		SqlManagedInstance = 8,
+		SqlOnDemand = 11
+	}
+
 	export interface DataProvider {
 		handle?: number;
 		readonly providerId: string;