| Elektra 0.11.0

Use Case: Select merge strategy in ansible-libelektra

# Summary

- Title: Select merge-strategy in ansible-libelektra
- Scope: ansible-libelektra
- Level: User goal
- Actors: User (usually sysadmin)
- Brief: It should be possible to specify the merge strategy used for conflicts. The merging should be performed by ansible-libelektra. The following strategies should be implemented:
  - OURS: use the new values
  - THEIRS: keep the old values
  - ABORT: on conflict don't merge and report an error

# Scenarios

- Precondition: -
- Main success scenario: If the user has specified a strategy, this strategy is applied on merge conflicts.
- Alternative scenario: If no strategy is specified ABORT is used.
- Error scenario: If there are still conflicts that could not be resolved, the offending keys should be reported.
- Postcondition: -
- Non-functional Constraints: -