Async retry

[sunng87]

Add support for Failsafe retry in async scenario. This is not needed by myself at the moment but it would be nice to have it supported from the library.

[oryband]

Ping. Any planned support when with-retry is used inside a core.async/go scope? For example:

• It looks like delay-ms blocks the go thread pool in this scenario.
• I also suspect exceptions are swallowed and lost in such case. Maybe the pattern stated here should be used https://wil.yegelwel.com/Error-Handling-with-Clojure-Async/

[sunng87]

hi @oryband , I don't have a core.async use case at the moment. Will you be interested in a pull request for this feature?