Make new workspace inputbox editable in Create project from database dialog (#13842)

* update create project from database dialog to have editable new workspace

* add validation

* add test

* add error message

* Remove test for now

* cleanup

* add periods

* throw errors

* change return type to void

extensions/sql-database-projects/src/models/api/import.ts

@@ -3,6 +3,7 @@
  *  Licensed under the Source EULA. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
 
+import { Uri } from 'vscode';
 import { ExtractTarget } from '../../../../mssql';
 
 /**
@@ -15,4 +16,5 @@ export interface ImportDataModel {
 	filePath: string;
 	version: string;
 	extractTarget: ExtractTarget;
+	newWorkspaceFilePath?: Uri;
 }