[7.x] Add ECS logging MVP to libbeat (#17974)#18262

Merged

simitt merged 1 commit intoelastic:7.xfrom simitt:backport/7.x/pr-17974

May 5, 2020

+4,147-718

Commits on May 5, 2020

Add ECS logging MVP to libbeat (elastic#17974 )
simitt
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