DUNE/Tasks: ActLockEntity: renamed isActive() to isRequestedActive().
Config: development/actlock_dummy: disable the EntityActivator by default.
DUNE/Tasks: ActLockEntity: handle QueryEntityStatus messages (reply with current EntityStatus).
DUNE/Tasks: ActLockEntity: added status change interface (only busy/active/inactive so far).
Simulators/DummyActLock: updated dummy task to use the ActLockEntity status interface.