chore(package): update url-loader to version 2.2.0

Closes #136

Author: greenkeeper[bot]

package.json

@@ -117,7 +117,7 @@
     "tslint-config-prettier": "^1.1.0",
     "tslint-eslint-rules": "^5.1.0",
     "typescript": "^2.4.2",
-    "url-loader": "^1.0.1",
+    "url-loader": "^2.2.0",
     "webpack": "^4.0.1",
     "webpack-bundle-analyzer": "^3.0.0",
     "webpack-cli": "^3.0.0",