Reorganize files

cheuph/__init__.py

@@ -0,0 +1,14 @@
+from typing import List
+
+from .element import *
+from .exceptions import *
+from .markup import *
+from .tree_display import *
+from .tree_list import *
+
+__all__: List[str] = []
+__all__ += element.__all__
+__all__ += exceptions.__all__
+__all__ += markup.__all__
+__all__ += tree_display.__all__
+__all__ += tree_list.__all__