Purpose to improve clarity and prepare for easier testing of REST API.

Allow one pending entry for uuid, mnemonic, mnemonic equivalence.
Update validation to consider status together with mnemonic, mnemonic validation.
Multiple pending entries per uuid no longer allowed.

Update docker integration tests accordingly.

Correct docker integration tests for structures for delete approve.
Refactor docker integration tests.

JIRA INFRA-4886

Add GitLab-CI build pipeline

See merge request !1

JIRA INFRA-4886

Updated validation of instance index rules for names and added docker integration tests for REST API endpoints for names

Updated validation of mnemonic rules for structures and added docker integration tests for REST API endpoints for structures

Verification of data migration with focus on device revision.
Verification of data migration with focus on name part revision.
Verification of data migration with focus on all data can be reached
Verification of data migration with focus on difference for content between old REST API and new REST API.

Purpose to intercept rest calls and handle logging in uniformed manner.