Add Arc Resources to Azure view (#9271)

* Initial work

* Add setting change handler

* Fix tests

* Update loc names and add preview tag

* Remove TODOs

extensions/azurecore/src/constants.ts

@@ -3,15 +3,9 @@
  *  Licensed under the Source EULA. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
 
-import * as nls from 'vscode-nls';
-
-const localize = nls.loadMessageBundle();
-
 export const extensionConfigSectionName = 'azure';
 export const ViewType = 'view';
 
 export enum BuiltInCommands {
 	SetContext = 'setContext'
 }
-
-export const extensionName = localize('extensionName', "Azure Accounts");