add Set2-Case3 peer test

etc/peer/models/Set2-Case3a-fast/active-crust/fault-sources/fault-config.json

+{
+  "surface-spacing": 0.1,
+  "rupture-scaling": "PEER",
+  "rupture-floating": "ON",
+  "dip-slip-model": null,
+  "dip-tree": null
+}

etc/peer/models/Set2-Case3a-fast/active-crust/fault-sources/features/fault.geojson

+{
+  "type": "Feature",
+  "id": 1,
+  "geometry": {
+    "type": "LineString",
+    "coordinates": [
+      [-65.00000,  0.38221],
+      [-65.00000, -0.38221]
+    ]
+  },
+  "properties": {
+    "name": "Set2 Fault 4",
+    "state": "CA",
+    "upper-depth": 1.0,
+    "lower-depth": 12.0,
+    "dip": 45.0,
+    "rake": 90.0,
+    "rate-type": "RECURRENCE",
+    "length": 85.0
+  }
+}

etc/peer/models/Set2-Case3a-fast/active-crust/fault-sources/mfd-config.json

+{
+  "epistemic-tree": null,
+  "aleatory-properties": null,
+  "minimum-magnitude": 5.0,
+  "nshm-bin-model": true
+}

etc/peer/models/Set2-Case3a-fast/active-crust/fault-sources/mfd-map.json

+{
+  "set2-case3-mfd": [
+    {
+      "id": "set2-case3",
+      "weight": 1.0,
+      "value": {
+        "type": "SINGLE",
+        "m": 7.0,
+        "rate": 0.0022360312
+      }
+    }
+  ]
+}

etc/peer/models/Set2-Case3a-fast/active-crust/fault-sources/source-tree.json

+[
+  {
+    "id": "source1",
+    "weight": 1.0
+  }
+]

etc/peer/models/Set2-Case3a-fast/active-crust/fault-sources/source1/rupture-set.json

+{
+  "name": "PEER Set2-Case3",
+  "id": 1,
+  "mfd-tree": "set2-case3-mfd"
+}

etc/peer/models/Set2-Case3a-fast/active-crust/fault-sources/tree-info.json

+{
+  "id": 2
+}

etc/peer/models/Set2-Case3a-fast/active-crust/gmm-config.json

+{
+  "max-distance": 200.0,
+  "epistemic-model": null,
+  "epistemic-tree": null
+}

etc/peer/models/Set2-Case3a-fast/active-crust/gmm-tree.json

+[
+  { "id": "ASK_14", "weight": 1.0 }
+]

etc/peer/models/Set2-Case3a-fast/calc-config.json

+{
+  "hazard": {
+    "exceedanceModel": "NONE",
+    "valueFormat": "POISSON_PROBABILITY",
+    "imts": ["PGA"],
+    "customImls": {
+      "PGA": [
+        0.001, 0.01, 0.05, 0.1, 0.15, 0.2, 0.25, 0.3, 0.35,
+        0.4, 0.45, 0.5, 0.55, 0.6, 0.7, 0.8, 0.9, 1.0]
+    }
+  }
+}

etc/peer/models/Set2-Case3a-fast/model-info.json

+{
+  "name": "PEER Set2-Case3a-fast",
+  "site-class-vs30": { "BC": 760 }
+}

etc/peer/models/Set2-Case3a-fast/sites.csv

+name,lon,lat,vs30,vsInf,z1p0,z2p5
+PEER S2-Fault3-Site1,-64.91005, 0.00000,760,false,0.048,0.607
+PEER S2-Fault3-Site2,-65.04497, 0.00000,760,false,0.048,0.607
+PEER S2-Fault3-Site3,-65.08995, 0.00000,760,false,0.048,0.607
+PEER S2-Fault3-Site4,-65.13490, 0.00000,760,false,0.048,0.607
+PEER S2-Fault3-Site5,-65.22483, 0.00000,760,false,0.048,0.607
+PEER S2-Fault3-Site6,-65.00900,-0.42718,760,false,0.048,0.607

etc/peer/models/Set2-Case3a/active-crust/fault-sources/fault-config.json

+{
+  "surface-spacing": 0.05,
+  "rupture-scaling": "PEER",
+  "rupture-floating": "ON",
+  "dip-slip-model": null,
+  "dip-tree": null
+}

etc/peer/models/Set2-Case3a/active-crust/fault-sources/features/fault.geojson

+{
+  "type": "Feature",
+  "id": 1,
+  "geometry": {
+    "type": "LineString",
+    "coordinates": [
+      [-65.00000,  0.38221],
+      [-65.00000, -0.38221]
+    ]
+  },
+  "properties": {
+    "name": "Set2 Fault 4",
+    "state": "CA",
+    "upper-depth": 1.0,
+    "lower-depth": 12.0,
+    "dip": 45.0,
+    "rake": 90.0,
+    "rate-type": "RECURRENCE",
+    "length": 85.0
+  }
+}

etc/peer/models/Set2-Case3a/active-crust/fault-sources/mfd-config.json

+{
+  "epistemic-tree": null,
+  "aleatory-properties": null,
+  "minimum-magnitude": 5.0,
+  "nshm-bin-model": true
+}

etc/peer/models/Set2-Case3a/active-crust/fault-sources/mfd-map.json

+{
+  "set2-case3-mfd": [
+    {
+      "id": "set2-case3",
+      "weight": 1.0,
+      "value": {
+        "type": "SINGLE",
+        "m": 7.0,
+        "rate": 0.0022360312
+      }
+    }
+  ]
+}

etc/peer/models/Set2-Case3a/active-crust/fault-sources/source-tree.json

+[
+  {
+    "id": "source1",
+    "weight": 1.0
+  }
+]

etc/peer/models/Set2-Case3a/active-crust/fault-sources/source1/rupture-set.json

+{
+  "name": "PEER Set2-Case3",
+  "id": 1,
+  "mfd-tree": "set2-case3-mfd"
+}

etc/peer/models/Set2-Case3a/active-crust/fault-sources/tree-info.json

+{
+  "id": 2
+}

etc/peer/models/Set2-Case3a/active-crust/gmm-config.json

+{
+  "max-distance": 500.0,
+  "epistemic-model": null,
+  "epistemic-tree": null
+}