Add result.bind_with helper function

[edmundmills]

When using pipe and results, I found myself writing things like this repeatedly:

    return pipe(
        previous_result,
        result.bind(partial(parse_to_struct, output_struct=LLMOutput)),
        result.bind(partial(select_chosen_result, search_results=search_results)),
        result.bind(partial(result_to_link_message, trace_metadata=trace_metadata)),
    )

I wrote a helper function to make this a little cleaner, which would allow:

    return pipe(
        previous_result,
        result.bind_with(parse_to_struct, output_struct=LLMOutput),
        result.bind_with(select_chosen_result, search_results=search_results),
        result.bind_with(result_to_link_message, trace_metadata=trace_metadata),
    )

Not sure if this warrants inclusion, but thought I'd share in case it does.

[edmundmills]

Reading through the issues, I've realized this is addressing the same issue as #214, but for the result world.