feat: Add .taskmaster directory (#619)

scripts/modules/task-manager.js

@@ -24,6 +24,7 @@ import removeTask from './task-manager/remove-task.js';
 import taskExists from './task-manager/task-exists.js';
 import isTaskDependentOn from './task-manager/is-task-dependent.js';
 import moveTask from './task-manager/move-task.js';
+import { migrateProject } from './task-manager/migrate.js';
 import { readComplexityReport } from './utils.js';
 // Export task manager functions
 export {
@@ -48,5 +49,6 @@ export {
 	taskExists,
 	isTaskDependentOn,
 	moveTask,
-	readComplexityReport
+	readComplexityReport,
+	migrateProject
 };