add dependency on bugsnag-sourcemaps

Author: hawkrives

package.json

@@ -104,6 +104,7 @@
     "babel-jest": "21.2.0",
     "babel-plugin-flow-react-proptypes": "9.0.0",
     "babel-preset-react-native": "3.0.1",
+    "bugsnag-sourcemaps": "1.0.1",
     "danger": "2.0.1",
     "eslint": "4.10.0",
     "eslint-config-prettier": "2.7.0",