createBucket abstract method
Create a cloud storage bucket.
Creates a cloud storage bucket named bucketName.
The bucket ACL can be set by passing predefinedAcl or acl. If both
are passed the entries from acl with be followed by the expansion of
predefinedAcl.
Returns a Future which completes when the bucket has been created.
Implementation
Future createBucket(String bucketName,
{PredefinedAcl? predefinedAcl, Acl? acl});