[7.x] Move streams utils to the core (#76397)#76609

Merged

mshustov merged 1 commit intoelastic:7.xfrom mshustov:backport/7.x/pr-76397

Sep 3, 2020

+85-136

Commits on Sep 3, 2020

Move streams utils to the core (elastic#76397 )

mshustov
and
spalger
committed