Try a fork of react-native-image-picker

[kueda]

Kind of a subtask of #431 and based on @Chrischuck's findings in #509, we need to explore maintaining a fork of https://github.com/react-native-image-picker/react-native-image-picker to support native image pickers and our own EXIF parser. Long story short, react-native-image-picker does a good job launching native image pickers in iOS and Android but it does not provide us with a path to the original URL of the photo that we need to extract all the EXIF data we want. There is a pull request in that repo that provides a path to the original URL in Android, but not in iOS.

Rough tasks here are

• double check https://github.com/IceOfSummer/react-native-image-picker provides us with a path to an image with all the EXIF we need (lat, lon, horizontal accuracy)
• Fork react-native-image-picker under the inaturalist account and pull in the IceOfSummer changes
• Make a new branch of our fork and change the iOS implementation so it does the same thing, i.e. provides the path to an original image that can be used to extract all the EXIF we need
• Maybe issue another pull request to react-native-image-picker for the iOS changes (hence the branch)
• Merge the branch into our main and in theory that should allow Import photos using native photo chooser #431 to proceed using our fork