Adds event log for actions and alerting#45081

Merged

pmuellr merged 11 commits intoelastic:masterfrom pmuellr:actions/event-log

Jan 21, 2020

+2,443-16

Commits on Jan 3, 2020

Commits on Jan 6, 2020

fix eslint issues
pmuellr
committed

Commits on Jan 17, 2020

Commits on Jan 20, 2020

Commits on Jan 21, 2020