Version 3.2rc1

With this release we now allow action.get_bdoc_container_file to return a file-like object too. This is mostly a compatibility fix for users of legacy implementations as it is part of the deprecated api. As a result it is easier to use the actions api with remote filesystem backends like S3.

Also:

• Use Github actions instead of travis for CI
• Update smartid test identity codes in unit tests
• Add tests for open_container method
• Use poetry for packaging and dependency management

Note: As the packaging tooling was updated we will create some release candidates before publishing the final release in PyPI.