feat(version): Add versioning (v1.2.1)

Respect cropbox for pdf.

feat(pdf): v1.2.0 Add PDF support (#1)

* feat(pdf): Add PDF support, round decimals to 3 points, support setting output file name

* feat(flags): Add command line argument flags

* feat(txt): Add support for outputting plain-text

* Update docs

* Update docs

Update readme

feat(v3): Support VNRecognizeTextRequestRevision3

- Write out entire JSON.
- Handle directory.