Added RNFS and refactor image upload to use it

mobile/src/ARViewer/ARViewer.js

@@ -62,6 +62,10 @@ class WorkItemSceneAR extends React.Component {
       return this.arScene
         .performARHitTestWithRay(orientation.forward)
         .then((results) => {
+          if (!results) {
+            return
+          }
+
           const forward = orientation.forward
           const position = orientation.position
           // Default position is just one meter in front of the user.
@@ -69,9 +73,6 @@ class WorkItemSceneAR extends React.Component {
             [forward[0] * 1.0, forward[1] * 1.0, forward[2]] * 1.0
           let hitResultPosition = null
 
-          console.log(orientation)
-          console.log(results)
-
           // Filter the hit test results based on the position.
           for (var i = 0; i < results.length; i++) {
             let result = results[i]
@@ -109,9 +110,7 @@ class WorkItemSceneAR extends React.Component {
             this.updateInitialRotation()
           }, 200)
         })
-        .catch((err) => {
-          console.log(err)
-        })
+        .catch((err) => {})
     })
   }