初步加入内发光，整理项目结构

assets/materials/glow-inner.mtl

@@ -0,0 +1,25 @@
+{
+  "__type__": "cc.Material",
+  "_name": "",
+  "_objFlags": 0,
+  "_native": "",
+  "_effectAsset": {
+    "__uuid__": "90211f16-c00e-4c37-a192-43ec50c9ea35"
+  },
+  "_defines": {
+    "USE_TEXTURE": true,
+    "USE_ALPHA_TEST": false,
+    "SHOW_OUT_LINE": true
+  },
+  "_props": {
+    "texture": null,
+    "outlineColor": {
+      "__type__": "cc.Vec4",
+      "x": 1,
+      "y": 1,
+      "z": 0,
+      "w": 1
+    },
+    "outlineSize": 0.1
+  }
+}

assets/materials/glow-inner.mtl.meta

@@ -0,0 +1,6 @@
+{
+  "ver": "1.0.2",
+  "uuid": "2c760728-404d-4553-a1d0-7ab18263845c",
+  "dataAsSubAsset": null,
+  "subMetas": {}
+}