feat(skill): 新增多个技能动画及预制体资源

- 新增 heal、maxr、maxw、maxy 技能动画文件
- 新增对应的技能预制体资源
- 重命名 buff_max.prefab 为 maxb.prefab
- 更新 skill1.png 资源文件

assets/resources/game/skill/anm/buff/heal.anim

@@ -0,0 +1,155 @@
+[
+  {
+    "__type__": "cc.AnimationClip",
+    "_name": "heal",
+    "_objFlags": 0,
+    "__editorExtras__": {
+      "embeddedPlayerGroups": []
+    },
+    "_native": "",
+    "sample": 18,
+    "speed": 1,
+    "wrapMode": 1,
+    "enableTrsBlending": false,
+    "_duration": 0.8333333333333334,
+    "_hash": 500763545,
+    "_tracks": [
+      {
+        "__id__": 1
+      }
+    ],
+    "_exoticAnimation": null,
+    "_events": [],
+    "_embeddedPlayers": [],
+    "_additiveSettings": {
+      "__id__": 7
+    },
+    "_auxiliaryCurveEntries": []
+  },
+  {
+    "__type__": "cc.animation.ObjectTrack",
+    "_binding": {
+      "__type__": "cc.animation.TrackBinding",
+      "path": {
+        "__id__": 2
+      },
+      "proxy": null
+    },
+    "_channel": {
+      "__id__": 5
+    }
+  },
+  {
+    "__type__": "cc.animation.TrackPath",
+    "_paths": [
+      {
+        "__id__": 3
+      },
+      {
+        "__id__": 4
+      },
+      "spriteFrame"
+    ]
+  },
+  {
+    "__type__": "cc.animation.HierarchyPath",
+    "path": "skill"
+  },
+  {
+    "__type__": "cc.animation.ComponentPath",
+    "component": "cc.Sprite"
+  },
+  {
+    "__type__": "cc.animation.Channel",
+    "_curve": {
+      "__id__": 6
+    }
+  },
+  {
+    "__type__": "cc.ObjectCurve",
+    "_times": [
+      0,
+      0.05555555555555555,
+      0.1111111111111111,
+      0.16666666666666666,
+      0.2222222222222222,
+      0.2777777777777778,
+      0.3333333333333333,
+      0.3888888888888889,
+      0.4444444444444444,
+      0.5,
+      0.5555555555555556,
+      0.6111111111111112,
+      0.6666666666666666,
+      0.7222222222222222,
+      0.7777777777777778
+    ],
+    "_values": [
+      {
+        "__uuid__": "3d46f945-3f07-477e-a95a-b49557d552c6@c8c48",
+        "__expectedType__": "cc.SpriteFrame"
+      },
+      {
+        "__uuid__": "3d46f945-3f07-477e-a95a-b49557d552c6@d959b",
+        "__expectedType__": "cc.SpriteFrame"
+      },
+      {
+        "__uuid__": "3d46f945-3f07-477e-a95a-b49557d552c6@d5f8f",
+        "__expectedType__": "cc.SpriteFrame"
+      },
+      {
+        "__uuid__": "3d46f945-3f07-477e-a95a-b49557d552c6@bb6c4",
+        "__expectedType__": "cc.SpriteFrame"
+      },
+      {
+        "__uuid__": "3d46f945-3f07-477e-a95a-b49557d552c6@31b15",
+        "__expectedType__": "cc.SpriteFrame"
+      },
+      {
+        "__uuid__": "3d46f945-3f07-477e-a95a-b49557d552c6@345d1",
+        "__expectedType__": "cc.SpriteFrame"
+      },
+      {
+        "__uuid__": "3d46f945-3f07-477e-a95a-b49557d552c6@bd75e",
+        "__expectedType__": "cc.SpriteFrame"
+      },
+      {
+        "__uuid__": "3d46f945-3f07-477e-a95a-b49557d552c6@c98e6",
+        "__expectedType__": "cc.SpriteFrame"
+      },
+      {
+        "__uuid__": "3d46f945-3f07-477e-a95a-b49557d552c6@2659f",
+        "__expectedType__": "cc.SpriteFrame"
+      },
+      {
+        "__uuid__": "3d46f945-3f07-477e-a95a-b49557d552c6@4f6aa",
+        "__expectedType__": "cc.SpriteFrame"
+      },
+      {
+        "__uuid__": "3d46f945-3f07-477e-a95a-b49557d552c6@d8139",
+        "__expectedType__": "cc.SpriteFrame"
+      },
+      {
+        "__uuid__": "3d46f945-3f07-477e-a95a-b49557d552c6@24fb1",
+        "__expectedType__": "cc.SpriteFrame"
+      },
+      {
+        "__uuid__": "3d46f945-3f07-477e-a95a-b49557d552c6@c3781",
+        "__expectedType__": "cc.SpriteFrame"
+      },
+      {
+        "__uuid__": "3d46f945-3f07-477e-a95a-b49557d552c6@67677",
+        "__expectedType__": "cc.SpriteFrame"
+      },
+      {
+        "__uuid__": "3d46f945-3f07-477e-a95a-b49557d552c6@d7dbf",
+        "__expectedType__": "cc.SpriteFrame"
+      }
+    ]
+  },
+  {
+    "__type__": "cc.AnimationClipAdditiveSettings",
+    "enabled": false,
+    "refClip": null
+  }
+]