Security Analysis PreContingencyResult: support per component result status

[jeandemanged]

Describe the current behavior

We can only report a single PreContingencyResult.status

Describe the expected behavior

We can report PreContingencyResult.status for each component (island)

Describe the motivation

For networks with multiple components, some components may solve both other components not. Reporting status on largest component is not enough, we miss the information that other contingencies in smaller islands were not computed.

Extra Information

For open load flow: powsybl/powsybl-open-loadflow#1089: in this PR we can only report non convergence on largest component.