specify acl for S3 objects

[ivan-aws]

Allows to specify the object ACL when using the S3 module. Uses private as the default, which was the implicit default before.

This allows to utilize different ACLs, like bucket-owner-full-control which is useful when operating with shared files.

Example:

s3 = S3(<region>,<bucket>)

s3.put_object(
    s3_asset_key,
    file_asset_path,
    style="s3-url",
    pre_check=True,
    object_acl="bucket-owner-full-control",
)

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[ivan-aws]

Updated tests in second commit. tests pass locally for me.

[sbkok]

I've added a few style suggestions, nothing major.
Thanks for contributing this.

[ivan-aws]

Done!
As an alternative, may I recommend switching to an opinionated formatting tool, such as black? Formatting can then be automated as part of the PR process

[sbkok]

Actually, I am working on adding automated formatting.
However, since that changes almost every line in our repository, I am waiting for our current PRs to be merged first.
Such that we don't need to modify as many PRs.

So most likely around releasing 3.2.0 I will add that to the repository.

[sbkok]

LGTM!

[sbkok]

LGTM, thanks!

[javydekoning]

LGTM! Thanks.