Implement missing posterior_optima and likelihood_optima for a test model.
#763
| Job | Run time |
|---|---|
| 19m 9s | |
| 13m 8s | |
| 15m 14s | |
| 12m 39s | |
| 19m 0s | |
| 24m 38s | |
| 20m 9s | |
| 2h 3m 57s |