allow passing of kwargs to typed predictor decorators

[limnick]

This change allows you to pass key word arguments such as the max_retries argument to the typed predictors while using the decorator method to construct them. Example:

class MyModule(dspy.Module):
    @dspy.cot(max_retries=5, explain_errors=True)
    def my_cool_function(self, input: Input) -> Output:
        """Does some incredibly cool stuff up to five times with an explanation for errors"""
        pass

    ... rest of module implementation

The arguments are optional, so @dspy.cot and @dspy.cot(max_retries=1) will both work under this patch.

[CholoTook]

Can you add some tests plz?