Add a bats test checking that the user creating a project, has the ability to enroll new enrollers into it

[polvorin]

Add the bats test here https://github.com/build-trust/ockam/blob/develop/implementations/rust/ockam/ockam_command/tests/bats/projects_orchestrator.bats

It should

• create a new identity (lets say named new_enroller)
• make the admin of the project enroll that new identity new_enroller as an enroller (passing --enroller when creating the enrollment ticket)
• check that that new_enroller  is able to create new enrollment tickets