data(spells): add batch 3 of PC spell list (32 spells)

data/spells/summon_monster_i.json

@@ -0,0 +1,16 @@
+{
+  "name": "Summon Monster I",
+  "level": 1,
+  "school": "conjuration",
+  "range": "close",
+  "save": "none",
+  "base_dc": 10,
+  "effects": [
+    {
+      "type": "summon",
+      "creature": "data/monsters/celestial_wolf.json",
+      "duration_rounds": 4
+    }
+  ],
+  "description": "Casting time 1 round: summons one extraplanar creature from the 1st-level list (e.g. dire rat, dog, eagle) to fight for you for 1 round/level. Simplified: the engine bestiary holds no 1st-level summon, so the celestial wolf model is reused and the duration is set to 4 rounds (1 round/level at caster level 4)."
+}