feat: add scan region

[DanielFRico]

Hello @gev2002 I hope everything is OK
Next PR includes a new interest feature and some types fixes.

1. A feature where user can add a scan region to scan process
2. A type fix to types TextRecognitionPlugin and BlocksData. Those fixes were made due to when I implemented them those types did not match with the console output

Let me know if you have any questions or suggestions!

[akleiber]

Hi @gev2002 Thank you for this repo :)
Thank you daniel for the PR.

We also need this feature and have created our own fork. But it would be very nice to not have so many forks and just add the feature here.
Do you have time to merge this PR or mind giving some more people access to the repo so we can help you maintain it?