Create __all__ for all python files (#589)

* add __all__ to files "adjustmentsinfo.py" and "albuminfo.py"

* add __all__ to file "cli.py"

* add __all__ to all files that misses except files with prefix "_"

osxphotos/queryoptions.py

@@ -6,6 +6,8 @@ from typing import Iterable, List, Optional, Tuple
 
 import bitmath
 
+__all__ = ["QueryOptions"]
+
 
 @dataclass
 class QueryOptions: