Updated mrc_event_handler.ts:

In EventHandlerMixin: Changed mrcOtherBlockId to mrcEventId and mrcMechanismBlockId to mrcMechanismId.
In EventHandlerExtraState: Changed otherBlockId to eventId and mechanismBlockId to mechanismId.

Updated mrc_call_python_function.ts:
In CallPythonFunctionMixin: Changed mrcOtherBlockId to multiple fields mrcMethodId, mrcComponentId, and mrcEventId. Changed mrcMechanismBlockId to mrcMechanismId.
In CallPythonFunctionExtraState: Changed otherBlockId to multiple fields methodId, componentId, and eventId. Changed mechanismBlockId to mechanismId.

Author: lizlooney