feature request: consider add Ticker

[Sherlock-Holo]

consider adding a new struct Ticker, which implement futures::Stream, can return an instant periodically by use .next().await

[antifuchs]

In the absence of this, I quickly wrote & released https://crates.io/crates/futures-ticker (crate) - happy to merge it into this crate, or keep it independent (and implement it for different Timer schemes, e.g. smol's).

[yoshuawuyts]

Thanks for opening @Sherlock-Holo! I guess we may want to re-introduce async_std::stream::interval into this crate.

[kennetpostigo]

@yoshuawuyts Hi, i'm looking for this functionality exactly, being able to run some work at every interval

[bittrance]

Indeed, I ended up at this issue because I tried to figure out what happened to Interval from the legacy futures version of futures-timer.

[youngjoon-lee]

Hi, Is there any plan to merge #60 (comment) into this repo?