add dependency on string-natural-compare

Author: hawkrives

package-lock.json

@@ -118,6 +118,7 @@
     "pify": "3.0.0",
     "prettier": "1.4.4",
     "react-native-view-shot": "1.12.0",
-    "react-test-renderer": "16.0.0-alpha.12"
+    "react-test-renderer": "16.0.0-alpha.12",
+    "string-natural-compare": "2.0.2"
   }
 }