To use certain types when writing the BarCodeScanner integration, it'll probably be useful to have the types available (not entirely necessary, so this can always be abandoned / revisited at a later point if it takes too much time).
Mainly used the types in the flow-typed repo as inspiration alongside the actual typescript file from expo. I did only include the methods in the class that I planned to use, but if it's better to include them all I can do that
Depends on D8770