Minimally handle SEED files and fix automated test caching issue

[al-niessner]

🗒️ Summary

Added to allowable mime types and how that maps to extensions.

⚙️ Test Data and/or Report

All unit tests below should pass but specifically 1028

♻️ Related Issues

Closes #1028

[nutjob4life]

Tried to do mvn clean package but I got:

[ERROR] Tests run: 269, Failures: 101, Errors: 0, Skipped: 23

Is there an external dependency I need to update?

[al-niessner]

@nutjob4life

Nope. It is simply broken. I have a really good case where the injection of schematron at test 1 is causing an error in test 8 because it thinks the model version should match the injected schematron. Maybe I can figure out what cache is not being emptied now.

[nutjob4life]

@al-niessner oh okay, no problem! Thanks for letting me know!

[al-niessner]

@jordanpadams @nutjob4life @tloubrieu-jpl

It is ready for release. The tests now all run on my laptop successfully. Waiting for github actions but my expectation is that they will pass. Two important things beyond this actual ticket:

1. The schema(tron) caches are now cleared. Using this ticket, I was able to uncover the mole sequestering the hidden caches.
2. Will now always fail on internal error. Well it works well for surprises, we should not accept surprises in our regression testing. Turns out that 9 tests were/are failing because it is generating internal errors when it should not be. Marked them and created validate cucumber testing is not exercising all tests as it should be #1058 so that y'all can schedule when you want to fix them. They are not trivial.

[jordanpadams]

The schema(tron) caches are now cleared. Using this ticket, I was able to uncover the mole sequestering the hidden caches.

@al-niessner this is very exciting! Great work! This mole has roamed free for many years. He must be the mole from Caddyshack. He has been harassing Bill Murray for too long...

[nutjob4life]

@jordanpadams is too fast; I only just now got:

[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------

Anyway, wooooot! 🎉