Add weapon data

public/data/weapons/swan-lake.json

@@ -0,0 +1,17 @@
+{
+  "id": "swan-lake",
+  "name": "Swan Lake",
+  "atk": 274,
+  "crt": 31,
+  "rarity": 5,
+  "skills": [
+    {
+      "name": "Austenite Blade",
+      "description": "[SP: 18][CD: 30s] Triggers 2 explosions that deal 50% + 300% + 500% ATK of Physical DMG. The 2nd explosion impairs the enemy (DEF lowered by 50%) for 8.0s. Can hold 2 charges. Performing Retaliation EX gives the Blueberry Blitz 1 charge. The next use of Austenite Blade gives 9 SP in return."
+    },
+    {
+      "name": "Odette's Apotheosis",
+      "description": "When Ultimate hits, wielder gains 40.0% Physical DMG and 40.0% Crit DMG for 9.0s."
+    }
+  ]
+}