Add a means to configure S3 multipart uploads

[fredshonorio]

Well that was about 6 months of procrastination and 15 minutes of work, but here we are.

I plan to add configurations for the remaining methods in S3[F[_]], should I make traits for those as well or just add a parameter like:

def delete(bucket: BucketName, key: FileKey, configure: DeleteObjectRequest.Builder => DeleteObjectRequest.Builder): F[Unit]

?

[fredshonorio]

Is there still interest in this? I could apply this to the current version.

[ramonmaruko]

I'm interested in seeing this in an official release. Could configure also be added to def uploadFile?

[max-peroch]

Same here! Is there anything missing in this PR?