Create cleanup function for resources created

[hackersifu]

Issue to create a cleanup function for the resources created by Assisted Log Enabler for AWS.
Cleanup for:

• AWS Route 53 Resolver Query Logs
• AWS VPC Flow Logs

[hackersifu]

Added cleanup for Route 53 Resolver Query Logs (single account mode) within release v1.3.0: https://github.com/awslabs/assisted-log-enabler-for-aws/releases/tag/v1.3.0

Will be adding more services in upcoming patches.

[hackersifu]

Added additional services to the cleanup functionality within release v1.4.1: https://github.com/awslabs/assisted-log-enabler-for-aws/releases/tag/v1.4.1

Services Added:

• VPC Flow Logs
• CloudTrail