iterate contents directly

- provide list of names

src/dir/directory.py

@@ -11,10 +11,16 @@ class Directory(ABC):
 
         self.contents = self.populate(log)
 
+    def __iter__(self):
+        return self.contents.__iter__()
+
     @property
     def name(self):
         return self.path.name
 
+    def by_name(self):
+        return [e.name for e in self.contents]
+
     @abstractmethod
     def populate(self, log: Log) -> list:
         raise NotImplementedError