* Created getPhotosFast function, fixed inconsistent getPhotos toDate logic
* Fixed wrong param name, added better typechecking
* Added example, renamed allowEmptyFilenames to skipGettingFilenames
* Removed `after` from getPhotosFast docs
* Redid implementation based on a new `include` param
* Updated API to use include parameter
* Fixed flow checking by converting index.ts to Typescript
* Unformatted README.md
* Unformatted README.md
* Unformatted README.md
* Added .prettierignore and ignored README.md for now
* Made example/index.js not checked by Flow
* Updated README.md to include notes in the outputs too
* Made inclusion of fields consistent, addressed other feedback
* Renamed GetPhotosFastParams back to GetPhotosParams
* Updated documentation to reflect nullable types
* Updated typings and documentation for fromTime, toTime
* Updated to fix `hasNextPage` being incorrectly false in some cases