Change ids to long main

Related issues

All (autogenerated) id fields in the entities were in integer type. Because ist is possible, that there will be a high number of ecmr and an even higher number of fields, it could pe possible to run into the limits of integer.

Acceptance criteria

• Implemented code changes don't diverge from the related issue.
• Documentation reflects the status quo after merge.
• Version number is incremented according to SemVer. (Snapshot versions are not merged/released.)
• Only released versions of dependencies are used (i.e. no snapshot versions).
• Pipeline still works.
• GitLab issue is up-to-date.

If necessary, the following sections have been updated:

• Swagger
• Readme.md
• Documentation

Proposed squash commit message

Replaced Integer type with Long for Autogenerated ID fields.

* Replaced Integer with Long for Autogenerated ID fields in the Entities and changed all corresponding code

Co-authored-by: Benedikt Hilbert benedikt.hilbert@de.rhenus.com