Macro metered_poll_nested_stream_with_budget

macro_rules! metered_poll_nested_stream_with_budget {
    ($acc:expr, $target:literal, $label:literal, $budget:ident, $poll_stream:expr, $on_ready_some:expr $(, $on_ready_none:expr;)? $(,)?) => { ... };
}

Metered poll of the given stream. Breaks with true if there maybe is more work.