Adding missing function

src/android/CameraLauncher.java

@@ -794,6 +794,17 @@ public class CameraLauncher extends CordovaPlugin implements MediaScannerConnect
         }
     }
 
+    private int exifToDegrees(int exifOrientation) {
+        if (exifOrientation == ExifInterface.ORIENTATION_ROTATE_90) {
+            return 90;
+        } else if (exifOrientation == ExifInterface.ORIENTATION_ROTATE_180) {
+            return 180;
+        } else if (exifOrientation == ExifInterface.ORIENTATION_ROTATE_270) {
+            return 270;
+        } else {
+            return 0;
+        }
+    }
     
     /**
      * Write an inputstream to local disk