[Security] ecs/cluster - Update ECS optimized Amazon Linux 2 to 20191…

…212 (widdix#379)

[Security] * - Update Amazon Linux 2 to 20191116 (widdix#374)

fix version placeholder

fix AWS bug

[Security] * - Update Amazon Linux 2 to 20191024.3 and ECS optimized …

…to 20191031 (widdix#364)

clean up

[Security] jenkins/* - Update Jenkins to 2.190.1 https://jenkins.io/c…

…hangelog-stable//#v2.190.1 (widdix#352)

[Security] ecs/cluster - Update Amazon Linux 2 optimized for ECS to 2…

…0190709 (widdix#347)

[Improvement] * - Improve alarms to not flip into insufficient data s…

…tate (widdix#343)

[New Template] vpc/vpc-flow-logs-s3 - Deliver VPC Flow Logs to S3 (wi…

…ddix#336)