New Package dealing with device rollback

New Package dealing with device rollback

Add a new class (TransactionHistory) capable of keeping
track of created interfaces (during a service creation
process) and rolling them back.

The DeleteService class handles the rollback process. Passing
in a subscriber (DeleteSubscriber) capable of tracking the process
and creating a result.

Pseudo code example

public Result rollbackExample(
        OpenRoadmInterfaceFactory openRoadmInterfaceFactory,
        OpenRoadmInterfaces openRoadmInterfaces,
        CrossConnect crossConnect
) {

    History transactionHistory = new TransactionHistory();

    String supportingOchInterface = openRoadmInterfaceFactory
        .createOpenRoadmOchInterface(...);

    transactionHistory.add(
        new DeviceInterface(nodeId, supportingOchInterface)
    );
    transactionHistory.addInterfaces(
        nodeId,
        supportingOchInterface.split("#")
    );

    Result rollbackResult = new FailedRollbackResult();
    Subscriber deleteSubscriber = new DeleteSubscriber(rollbackResult);

    transactionHistory.rollback(
        new DeleteService(
            crossConnect,
            openRoadmInterfaces,
            deleteSubscriber
        )
    );

    return rollbackResult.renderRollbackOutput();

}

JIRA: TRNSPRTPCE-615
Change-Id: I723e42628e8de0b45ab9160b5b8c366497c0f550
Signed-off-by: Joakim Törnqvist <joakim.tornqvist@smartoptics.com>