Add a way to execute S3 storage test on AWS
Add a way to execute S3 storage test on AWS

Create kopia bucket and user with unique ID on minio
Create AWS bucket before running tests

Signed-off-by: Prasad Ghangal <19f2424d02b75865808f00d33ae1ebc8dec3c37e@gmail.com>

kopia/kopia,kopia/kopia,kopia/kopia,kopia/kopia