OpenCV: Impl a testing environment for checking config

[yustarandomname]

Create a environment that has as input a and outputs a:

1. Valid hierarchy for a image
2. The correct hierarchy structure for some certain image
3. (Bonus) Have input images in one folder and output images in another for debugging
4. (Bonus) Testing environment to test specifically the transformation step too

I think vitest might be the best tool for this issue. If there are any other suggestion, please add these here

[juliavdkris]

I'm thinking maaayyybe for this one it's better to have a separate testing environment? Because I think unit testing OpenCV.js is probably gonna be kind of a pain (since it's just not really designed to run in an environment that's not a web browser). Also, we probably don't want the unit test to fail if one of the test cases fails, since we're mostly interested in what percentage of images gets processed properly.

I would suggest maybe we should set up a separate testing environment in Python, where we just pass it one big object with the configuration/thresholds used, and output the percentage of images that gets parsed properly. What do you guys think?