Allow docx to wileyml-bundle transformation
The transformation from DOCX -> eXtyles -> JATS ZIP -> WileyML article bundle (as in the
wileyml-bundle output format) is needed.
As they're currently in two separate endpoints, keep DOCX -> JATS ZIP in one endpoint and add JATS ZIP -> WileyML article bundle in the JATS endpoint, so the process happens in two separate requests.
sachs will do the transformation from JATS ZIP -> WileyML article bundle.