Add ability to have VPC Flow Logs stored in Parquet format

[hackersifu]

Add the ability to create VPC Flow Logs that are stored in Parquet format.

Boto3 documentation for the DestinationOptions for create_flow_logs: https://boto3.amazonaws.com/v1/documentation/api/latest/reference/services/ec2.html#EC2.Client.create_flow_logs