Implement DELETE endpoint on the ProvMnS controller

Implement DELETE endpoint on the ProvMnS controller

 - added implementation for the delete flow
 - added new POJO for the permission check
 - added testware for synchronous get and delete
 - Correct names for mocked service (consistent with similar test classes)
 - Fixed indentation on production code to reduce lines not covered
   (but that does not help coverage score)
 - Upgrade Jacoco version

Issue-ID: CPS-2705
Change-Id: I1bd3aacd60db655080f8128f7580cda901095959
Signed-off-by: leventecsanyi <levente.csanyi@est.tech>