Add examples related to bbox

[Kishlay-notabot]

In order to compensate for the absence of the examples related to bbox and its functions, I've added the above files for people to explore and tweak. The inspiration came from the official site's demo.

[Kishlay-notabot]

@Balearica Please approve if found apt.

[Balearica]

It looks like this is a functional example showing how to retrieve bounding box information, which I agree other users may find helpful.

In general, my concern regarding adding new examples to the main Tesseract.js repo is that users assume that everything here is up to date, so whenever a new example gets added, I am effectively committing to maintaining it going forward. This is why all of the examples that currently exist in the examples directory are extremely minimal and only demonstrate core concepts.

When users create examples that are larger in terms of lines of code, or demonstrate a more niche use, we generally keep those in separate repos that are linked in this section of the Tesseract.js readme. Therefore, if you want to move this example to its own repo, and document what it does and how to run it in the readme, we can link in the Tesseract.js readme.

[Kishlay-notabot]

Oh thanks, I'll make a seperate repo for the examples then, no issues.

[Kishlay-notabot]

@Balearica when i add the new repo with a pull request i suggest we should add a markdown notification in the examples folder directing the users to more of the complex examples mentioned in the main readme but sometimes people jump directly to examples and don't find what they need. I'll work on it