NewClient constructs a new S3 backup upload provider client that can upload/download backups to any S3 compliant API e.g.

NewConfig creates an S3 configuration based on the input parameters.

NewStorage creates a provider capable of storing and retreiving objects against the specified 's3' storage configuration and credentials.

Client is an S3 client and configured Uploader.

Config holds the credentials required to authenticate with an S3 compliant API.

Provider is storage implementation of provider.Interface.