test(compare): trace CreateManyNPC monthly action

hwe/compare/fixtures/monthly_create_many_npc.json

@@ -0,0 +1,15 @@
+{
+  "action": "CreateManyNPC",
+  "args": [2, 0],
+  "environment": {
+    "year": 193,
+    "month": 5,
+    "startyear": 190,
+    "turnterm": 10,
+    "turntime": "0193-05-01 00:00:00"
+  },
+  "setup": {
+    "resetGenerals": true
+  },
+  "observe": {}
+}