Deleting the copy of workbench_machine.inc plugin that was based directly on state flow. Replacing with the eexperimental workbench_moderation one.

Deleting the copy of workbench_machine.inc plugin that was based directly on state flow. Replacing with the eexperimental workbench_moderation one.

Can delete much of workbench_events_ui.class.php and workbench_workflows_ui.class.php because of workbench_base_ui.class.php

Copying workbench_states_ui.class.php to workbench_base_ui.class.php because there is a lot of commonality currently in states, events, workflows.