Cherry-pick #16892 to 7.x: [Metricbeat] Separate vpc metricset to vpn, transitgateway and natgateway metricsets#17149

Merged

kaiyan-sheng merged 2 commits intoelastic:7.xfrom kaiyan-sheng:backport_16892_7.x

Mar 20, 2020

+3,488-135

Commits on Mar 20, 2020