chore(pacakge): Add release tooling

Author: joshwiens

package.json

@@ -3,16 +3,22 @@
   "version": "0.5.8",
   "author": "Tobias Koppers @sokra",
   "description": "url loader module for webpack",
+  "license": "MIT",
+  "scripts": {
+    "release": "standard-version"
+  },
   "dependencies": {
     "loader-utils": "^1.0.2",
     "mime": "1.3.x"
   },
+  "devDependencies": {
+    "standard-version": "^4.0.0"
+  },
   "peerDependencies": {
     "file-loader": "*"
   },
   "repository": {
     "type": "git",
     "url": "[email protected]:webpack/url-loader.git"
-  },
-  "license": "MIT"
+  }
 }