[FEATURE]Add Data-prepper pipeline for aws_vpc -flow integration

[YANG-DB]

Is your feature request related to a problem?
Add a data-prepper pipeline for the aws-vpc flow integration - this should include

• README describing the setting up of the data-prepper-pipeline
• Local docker compose sample for a file source pipeline
• actual (s3) pipeline that may be used for the logs ingestion

Do you have any additional context?

• Add AWS VPC Flow Log integration #698