Force creation of the extension in the network modifications that creates new feeders

[colinepiloquet]

Describe the current behavior

When using the network modifications CreateFeederBay or CreateBranchFeederBays, if the order position given is correct but not available, then a warning is returned and the connectable is still created.

Describe the expected behavior

If the order position is incorrect, an optional parameter should indicate whether an error should be returned and in case an error is returned, the connectable should not be created. The optional parameter allows to avoid a change in the behavior of the modifications.

Describe the motivation

This allows to force users to indicate a correct order position.

Extra Information

No response