Add weapon data

public/data/weapons/silver-reaper.json

@@ -0,0 +1,17 @@
+{
+  "id": "silver-reaper",
+  "name": "Silver Reaper",
+  "atk": 268,
+  "crt": 29,
+  "rarity": 5,
+  "skills": [
+    {
+      "name": "Severing Slash",
+      "description": "[SP: 15][CD: 14s] Deploys the weapon to automatically slash enemies within range 3 times per second for the next 6s, with each hit dealing 900 Physical DMG and weakening enemies, reducing their ATK by 50% for 5s."
+    },
+    {
+      "name": "Deathly Scythe",
+      "description": "Attacks against weakened enemies gain 35% Total DMG Multiplier."
+    }
+  ]
+}