Add connect/disconnect on Tie Lines and HVDC Lines

[rolnico]

Please check if the PR fulfills these requirements

• The commit message follows our guidelines
• Tests for the changes have been added (for bug fixes / features)
• Docs have been added / updated (for bug fixes / features)

Does this PR already have an issue describing the problem?
No

What kind of change does this PR introduce?
Bug fix + new Feature

What is the current behavior?
If you use for example a ConnectableConnection on a non-existing connectable or on a TieLine (which is not a Connectable), the application of the NetworkModification will crash due to a null pointer exception. This is due to the fact that only Connectables are managed since Tie Lines and HVDC Lines do not have connect/disconnect methods.

What is the new behavior (if this is a feature change)?
Tie Lines and HVDC Lines now have connect and disconnect methods implemented.
Network modification for connection and disconnection now also work with Tie Lines and HVDC Lines.

Does this PR introduce a breaking change or deprecate an API?

• Yes
• No

If yes, please check if the following requirements are fulfilled

• The Breaking Change or Deprecated label has been added
• The migration steps are described in the following section

What changes might users need to make in their application due to this PR? (migration steps)

If you had your own implementation for HVDC Lines, you now need to implement the following methods:

    boolean connectConverterStations();
    boolean connectConverterStations(Predicate<Switch> isTypeSwitchToOperate);
    boolean connectConverterStations(Predicate<Switch> isTypeSwitchToOperate, TwoSides side);
    boolean disconnectConverterStations();
    boolean disconnectConverterStations(Predicate<Switch> isSwitchOpenable);
    boolean disconnectConverterStations(Predicate<Switch> isSwitchOpenable, TwoSides side);

If you had your own implementation for Tie Lines, you now need to implement the following methods:

    boolean connectDanglingLines();
    boolean connectDanglingLines(Predicate<Switch> isTypeSwitchToOperate);
    boolean connectDanglingLines(Predicate<Switch> isTypeSwitchToOperate, TwoSides side);
    boolean disconnectDanglingLines();
    boolean disconnectDanglingLines(Predicate<Switch> isSwitchOpenable);
    boolean disconnectDanglingLines(Predicate<Switch> isSwitchOpenable, TwoSides side);

[rolnico]

This is another possible solution that would close #3069

[rolnico]

Should the Tie Line and HVDC Line become Connectables ?

[flo-dup]

Could you add a utility method to avoid the code duplication?

[olperr1]

@annetill: Should we also revert the javadoc changes of #3079?

Seen with @flo-dup.

[sonarcloud]

Quality Gate passed

Issues
3 New issues
0 Accepted issues

Measures
0 Security Hotspots
93.6% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud