Add weapon data

public/data/weapons/pledge-of-sakura.json

@@ -0,0 +1,17 @@
+{
+  "id": "pledge-of-sakura",
+  "name": "Pledge of Sakura",
+  "atk": 257,
+  "crt": 53,
+  "rarity": 5,
+  "skills": [
+    {
+      "name": "Divine Soulband",
+      "description": "[SP: 20][CD: 12s] Summons and deploys the weapon, throwing Sakura katanas at enemies within range, slashing them once every 0.3s for the next 3.5s. Each slash deals 180.0% ATK of Physical DMG and has a 21.2% chance of adding a Sakura Count. An enemy with 3 Sakura Counts will have the count reset to 0 and receives a Sakura Brand. The Sakura Brand lasts 10s."
+    },
+    {
+      "name": "Fubuki",
+      "description": "Hitting a target provides a 100.0% chance of unleashing a Sakura Slash dealing 200.0% of ATK of Physical DMG in a circular area centered on said target. Enemies with Sakura Brand or Sakura Count will take another 2,450 Fire DMG from Sakura Slash. Sakura Slash CD: 5s.Sakuno Rondo equip bonus: Sakura Slash adds 1 Sakura Count on the enemy."
+    }
+  ]
+}