`Orchestrator.console` was shortened to `Orchestrator.c` for convenience
so that a function `@module def foo(o: Orchestrator, ...)` can just use
`o.c.print` instead of `o.console.print`. Existing `class Foo(Module)`
should still use `self.c` like before.
Module.orchestrator was shortened to Module.o for convenience and
consistency with `Module.c`.
