Added plain-text comparison for tests

[benjats07]

This PR adds a comparison during ingest test for the content of the files in plain text (i.e.: without JSON format)

[cragwolfe]

I tried modifying
https://github.com/Unstructured-IO/unstructured/blob/main/test_unstructured_ingest/expected-structured-output/local-single-file/english-and-korean.png.json
and running

./test_unstructured_ingest/test-ingest-local-single-file.sh

and got this output:

\ No newline at end of file
xargs: jq '.[].text'<{}>/Users/cragwolfe/r/unstructured/test_unstructured_ingest/expected-text-output/local-single-file: No such file or directory
xargs: jq '.[].text'<{}>/Users/cragwolfe/r/unstructured/test_unstructured_ingest/text-output/local-single-file: No such file or directory

Which makes sense because a file is a valid test path in addition to a directory. Besides fixing that, additional comments:

• please word wrap long lines to multiple lines (say 80 characters per line) for easier diff viewing.
• store-just-text.sh could have a more descriptive name. something like json-to-clean-text-file.sh ?
• please add a line or two to .gitignore so the generated text files are ignored by git

[benjats07]

@cragwolfe I addressed those issues

[qued]

From the folder name it sounds like this is where the text output fixtures would go. Don't we want to track changes in git for these fixtures?

[cragwolfe]

there are no text fixtures so far, only json fixtures. this PR derives the clean text from json's at runtime.

[cragwolfe]

Definitely a big improvement to view partitioned text output changes! 👍