feat(skill): 重构技能模块，新增技能前后摇动画和组件

- 新增技能前后摇动画资源及配置
- 添加技能组件(SkillCom, EndAnmCom)和视图组件
- 重构技能配置表，支持前后摇动画配置
- 删除旧版技能资源(prefab, boom目录)
- 调整技能预制体路径结构

assets/resources/game/skill/ready/fire1.prefab.meta

@@ -0,0 +1,13 @@
+{
+  "ver": "1.1.50",
+  "importer": "prefab",
+  "imported": true,
+  "uuid": "43a67d73-b426-4f20-9a1f-1aaae1c82bd0",
+  "files": [
+    ".json"
+  ],
+  "subMetas": {},
+  "userData": {
+    "syncNodeName": "fire1"
+  }
+}