version number in rl_games

[ankurhanda]

>>> import rl_games
>>> rl_games.__
rl_games.__cached__          rl_games.__doc__             rl_games.__getattribute__(   rl_games.__le__(             rl_games.__new__(            rl_games.__repr__(           rl_games.__subclasshook__(
rl_games.__class__(          rl_games.__eq__(             rl_games.__gt__(             rl_games.__loader__          rl_games.__package__         rl_games.__setattr__(        
rl_games.__delattr__(        rl_games.__file__            rl_games.__hash__(           rl_games.__lt__(             rl_games.__path__            rl_games.__sizeof__(         
rl_games.__dict__            rl_games.__format__(         rl_games.__init__(           rl_games.__name__            rl_games.__reduce__(         rl_games.__spec__            
rl_games.__dir__(    ```

I don't see `rl_games.__version__` so if you install rl_games you can't tell which version you have.