[Repo Assist] Add AsyncSeq.head, iteri, find, tryFindAsync, tail#255

dsyme merged 2 commits intomainfsprojects/FSharp.Control.AsyncSeq:mainfrom

repo-assist/improve-head-iteri-find-tail-edfca61a273ff76efsprojects/FSharp.Control.AsyncSeq:repo-assist/improve-head-iteri-find-tail-edfca61a273ff76eCopy head branch name to clipboard