Island: Add set_simulation_mode Island event handler

monkey/monkey_island/cc/island_event_handlers/__init__.py

@@ -1,3 +1,4 @@
 from .reset_agent_configuration import reset_agent_configuration
 from .reset_machine_repository import reset_machine_repository
 from .set_agent_configuration_per_island_mode import set_agent_configuration_per_island_mode
+from .set_simulation_mode import set_simulation_mode

monkey/monkey_island/cc/island_event_handlers/set_simulation_mode.py

@@ -0,0 +1,19 @@
+from typing import Any
+
+from monkey_island.cc.repository import ISimulationRepository
+
+
+class set_simulation_mode:
+    """
+    Callable class that sets the Island's mode
+    """
+
+    def __init__(
+        self,
+        simulation_repository: ISimulationRepository,
+    ):
+        self._simulation_repository = simulation_repository
+
+    def __call__(self, event: Any = None):
+        mode = event
+        self._simulation_repository.set_mode(mode)