additional reference test cases

[abrahamson]

1. testing source type 7 (Nick)
2. testing source type 3 (Christie)
3. testing WAACY mag pdf (Debra)
4. testing NGA-W1 GMPEs (Christie)
5. bilinear TE mag pdf (Debra)
6. testing epistemic uncer in median and sigma (Christie)
7. testing segmentation for faults (Christie)
8. testing all four rate methods for faults (SR, Act rate, Rec Int, Moment rate) (Debra)
9. Run Option 1 (Christie)
10. Run Option 2 (Christie)