Adds "Get Connection String" command (#2108)

* Initial connection string changes

* Add Get Connection String methods

* Add IncludePassword parameter

* Update Data Protocol and Tools Service versions

* Update dataprotocol to 0.2.2

* Try to update the dataprotocol component again

* Fix a few bugs related to getting the current editor connection uri

src/sql/workbench/api/node/sqlExtHost.api.impl.ts

@@ -105,6 +105,9 @@ export function createApiFactory(
 				listDatabases(connectionId: string): Thenable<string[]> {
 					return extHostConnectionManagement.$listDatabases(connectionId);
 				},
+				getConnectionString(connectionId: string, includePassword: boolean): Thenable<string> {
+					return extHostConnectionManagement.$getConnectionString(connectionId, includePassword);
+				},
 				getUriForConnection(connectionId: string): Thenable<string> {
 					return extHostConnectionManagement.$getUriForConnection(connectionId);
 				}