* #144 - when creating new observation, import first photo EXIF data for location + date
* #144 - usePhotoExif - read partial file data; added testing for usePhotoExif hook
* #144 - import photo exif - use our own react-native-exif-reader library + other fixes (not to automatically fetch location, save original uri)
* Do not save original photo URI in DB, only pass it along to obs edit screen for EXIF parsing
* Upgraded testing library version to support renderHook
Co-authored-by: Ken-ichi Ueda <kenichi.ueda@gmail.com>
