Version sync 4.1.0 -> 4.1.1 (#687)

chore: add eInvoicing module

fix: no external vocabularies redefined (#673)

chore: add eAccess and eSumbission modules

Release/4.1.0 (#590)

- eAccess
- eSubmission
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Hotfix branch (#556)

- epo:Notice epo:hasOJSIssueNumber:xsd:integer data type changes to rdf:PlainLiteral

Hotfix branch (#534)

* removed duplicated imports; removed at-voc-new refs; import core layer into modules; cross-module imports.
* removed at-voc-new refs.
* changed URIs for cpv and nuts.

importing core into modules; cross-modules imports

removed duplicated imports; imported core in modules; cross-module im…

…ports.

removed duplicated imports; imported core in modules; cross-module im…

…ports.