Solvis EPIC: Composite Inversion Solution

[chrisbc]

We want to work with a complete NZSHM model version as if it's a single inversion solution, so that user can:

• get rates for all ruptures in the model
• visualise the fault surfaces
• visualise the rupture surfaces
• see what Inversions Source(s) a given rupture links to
• get aggregated rate info for each unique rupture (although the rupture is unique, the IS rates will vary)
• location proximity filtering
• rate filtering
• magnitude filtering

Key things to handle:

• #10
• #11
• #12
• possible case where same rupture geometry has different rupture set sources (not an issue now)