Add String Formatting to NumberResponse

[lukekh]

🚀 The feature

If I put a NumberResponse class in a formatted string (e.g. f"{response:.2f}") I want it to render the format specified.

I think all this would take is adding a method

def __format__(self, fmt):
       return self.value.__format__(fmt)

to the BaseResponse class.

Motivation, pitch

This will mean formatting responses that are numeric will not require access to the value attribute.

Alternatives

No response

Additional context

No response