static <C> @Pure @NonNull ExecutionCoordinator<C> simpleCoordinator() {
        return ExecutionCoordinator.<C>builder().build();
    }
Create a new execution coordinator that does not make any attempt to schedule tasks to a particular executor. Parsing
and suggestions will run on the calling thread until redirected by a parser, suggestion provider, or similar, at which
point execution will continue on that thread.

@param <C> command sender type
@return new coordinator
cloud-core/src/main/java/org/incendo/cloud/execution/ExecutionCoordinator.java