feat(skill): 新增fb-1、fb-2技能特效，替换原有line系列技能

1.  新增fb-1、fb-2的预制体与动画资源
2.  删除line1-line5及atk_c6旧技能资源
3.  更新SkillSet配置，将6101、6102、6103技能指向新特效
4.  调整hero_move界面的UI位置参数

assets/resources/game/skill/anm/atk/fb-1.anim

@@ -0,0 +1,95 @@
+[
+  {
+    "__type__": "cc.AnimationClip",
+    "_name": "fb-1",
+    "_objFlags": 0,
+    "__editorExtras__": {
+      "embeddedPlayerGroups": []
+    },
+    "_native": "",
+    "sample": 14,
+    "speed": 1,
+    "wrapMode": 2,
+    "enableTrsBlending": false,
+    "_duration": 0.21428571428571427,
+    "_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": "Node"
+  },
+  {
+    "__type__": "cc.animation.ComponentPath",
+    "component": "cc.Sprite"
+  },
+  {
+    "__type__": "cc.animation.Channel",
+    "_curve": {
+      "__id__": 6
+    }
+  },
+  {
+    "__type__": "cc.ObjectCurve",
+    "_times": [
+      0,
+      0.07142857142857142,
+      0.14285714285714285
+    ],
+    "_values": [
+      {
+        "__uuid__": "2842dc10-d89e-4ff6-8a11-6d09bf48cf20@59ec8",
+        "__expectedType__": "cc.SpriteFrame"
+      },
+      {
+        "__uuid__": "2842dc10-d89e-4ff6-8a11-6d09bf48cf20@3a170",
+        "__expectedType__": "cc.SpriteFrame"
+      },
+      {
+        "__uuid__": "2842dc10-d89e-4ff6-8a11-6d09bf48cf20@482b5",
+        "__expectedType__": "cc.SpriteFrame"
+      }
+    ]
+  },
+  {
+    "__type__": "cc.AnimationClipAdditiveSettings",
+    "enabled": false,
+    "refClip": null
+  }
+]