Add lifecycle model supporting transition, done and waiting states

We've been experimenting with some new state models in our internal workflow testing at JPL. It would be nice to flow some of those state models in an explicit o.a.oodt.cas.workflow.lifecycle workflow model package. Something like the following might make sense:

1. done/
2. holding/
3. initial/
4. results/
5. running/
6. transition/
7. waiting/