升级到webpack4

package.json

@@ -6,8 +6,10 @@
   "types": "dist/index.d.ts",
   "private": true,
   "scripts": {
-    "build": "tsc & webpack",
-    "dev": "tsc -w"
+    "build": "tsc",
+    "umd": "webpack --config ./config/webpack.umd.ts",
+    "dev": "tsc -w",
+    "type": "ts-node ./utils/copy_type.ts"
   },
   "repository": {
     "type": "git",
@@ -16,14 +18,23 @@
   "author": "cx",
   "license": "ISC",
   "devDependencies": {
-    "@types/node": "^10.1.2",
-    "@types/three": "^0.92.0",
-    "awesome-typescript-loader": "^3.4.1",
-    "typescript": "^2.8.3",
-    "uglifyjs-webpack-plugin": "^1.2.5",
-    "webpack": "^3.10.0"
+    "@types/hard-source-webpack-plugin": "^0.9.0",
+    "@types/node": "^10.7.1",
+    "@types/three": "^0.92.17",
+    "@types/uglifyjs-webpack-plugin": "^1.1.0",
+    "@types/webpack": "^4.4.10",
+    "awesome-typescript-loader": "^5.2.0",
+    "fork-ts-checker-webpack-plugin": "^0.4.8",
+    "hard-source-webpack-plugin": "^0.12.0",
+    "ts-loader": "^4.4.2",
+    "ts-node": "^7.0.1",
+    "typescript": "^3.0.1",
+    "uglifyjs-webpack-plugin": "^1.3.0",
+    "webpack": "^4.16.5",
+    "webpack-cli": "^3.1.0",
+    "webpack-merge": "^4.1.4"
   },
   "dependencies": {
-    "three": "^0.92.0"
+    "three": "^0.95.0"
   }
 }