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/common/queryManagement.ts

@@ -39,6 +39,7 @@ export interface IQueryManagementService {
 	isProviderRegistered(providerId: string): boolean;
 	getRegisteredProviders(): string[];
 	registerRunner(runner: QueryRunner, uri: string): void;
+	getRunner(uri: string): QueryRunner | undefined;
 
 	cancelQuery(ownerUri: string): Promise<QueryCancelResult>;
 	runQuery(ownerUri: string, range?: IRange, runOptions?: ExecutionPlanOptions): Promise<void>;
@@ -138,6 +139,10 @@ export class QueryManagementService implements IQueryManagementService {
 		}
 	}
 
+	public getRunner(uri: string): QueryRunner | undefined {
+		return this._queryRunners.get(uri);
+	}
+
 	// Handles logic to run the given handlerCallback at the appropriate time. If the given runner is
 	// undefined, the handlerCallback is put on the _handlerCallbackQueue to be run once the runner is set
 	// public for testing only