Add grid streaming support for notebooks (#12175)

* add onResultUpdate handler in gridoutput

* convert rows to mimetype and html

* wait for data conversion to finish before saving

* detach changeRef after output is created

* fix save grid action

* move data conversion check to each cell

* move conversion logic to dataprovider

* notify data converting when user saves

* add comments and remove unused methods

* fix method return type

* fix tests

* fix convertData method header

* move azdata changes to azdata proposed

* address PR comments

* display top rows message

* fix messages/table ordering and query 100 rows

* add missing escape import

* set default max rows to 5000

* add undefined check to updateResultSet

* change gridDataConversionComplete return type

src/sql/workbench/services/query/test/common/testQueryManagementService.ts

@@ -26,6 +26,9 @@ export class TestQueryManagementService implements IQueryManagementService {
 	registerRunner(runner: QueryRunner, uri: string): void {
 		return;
 	}
+	getRunner(uri: string): QueryRunner {
+		throw new Error('Method not implemented.');
+	}
 	async cancelQuery(ownerUri: string): Promise<azdata.QueryCancelResult> {
 		return { messages: undefined };
 	}