[CONTRIB] Introduce certificate update use case in CertService

[CONTRIB] Introduce certificate update use case in CertService

1. Make changes in order to allow performing KUR/CR in EJBCA:
- Add Certificate Update Admin role
- Enable EndEntityAuthentication module
- Create and set CA with constant UID
- Add configuration for provider.
2. Update CertService, which provides with new certificate update
endpoint.
3. Update release-notes.

Issue-ID: OOM-2753
Issue-ID: OOM-2754
Signed-off-by: Piotr Marcinkiewicz <piotr.marcinkiewicz@nokia.com>
Change-Id: I9cb0cb4d6d6939ad229a4ea254f2bc35d45a3d52
Signed-off-by: Joanna Jeremicz <joanna.jeremicz@nokia.com>