Adds regex testing script

We could use this MR for collab @fvpotvin. Not seeing it as super necessary that it ends up getting merged until we nail down the solution, so any changes should/could be commits.

Process:

1. Download & extract the following OCR archive link
2. run jq against one of the files with a command similar to

jq '.[].text_annotations[]?.text' yt_unfiltered_3QJggoLsCxE.mp4.json > yt_unfiltered_3QJggoLsCxE.txt

3. ingest the file via something like:

ruby ./scanner-ingest-all.rb yt_unfiltered_3QJgggoLsCxE.txt

To Do:

• figure out why we can't just ingest the individual files of the archive before formatting (ie yt_unfiltered_3QJggoLsCxE.mp4.json).
• automate ingesting archives
• compare results against our known truth file