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

data/spells/silence.json

@@ -0,0 +1,10 @@
+{
+  "name": "Silence",
+  "level": 2,
+  "school": "illusion",
+  "range": "long",
+  "save": "will",
+  "base_dc": 10,
+  "effects": [],
+  "description": "Casting time 1 round. A 20-ft.-radius emanation centered on a creature, object, or point in space: all sound is stopped in the area, spells with verbal components cannot be cast, and creatures inside are immune to sonic and language-dependent effects. Duration 1 round/level. Will negates (object). No combat effect encoded: the engine has no verbal component or sound propagation model."
+}