Updates to ord-interface to get tests passing

[skearnes]

Changes to make ord-interface stand alone. Highlights:

• The "long" tests now use locally built docker images, so they run quite fast.
• The run_tests.sh script is the entry point for running tests. It builds new ord-postgres and ord-interface docker images and uses them for testing. The data in ord-data is randomly downsampled to make the database population step faster.
• The overall time for run_tests.sh is ~10 minutes from scratch. We should look into additional docker build caching.

NOTE: The ord_client{_test}.py code is not updated in this PR. I'll move the related PR and issue over from ord-schema.

For posterity, the initial migration was done using https://github.com/newren/git-filter-repo/

$ git clone git@github.com:Open-Reaction-Database/ord-schema.git ord-interface
$ git-filter-repo --path ord_schema/interface --path AUTHORS --path CONTRIBUTING.md --path LICENSE --path .github/workflows --path format.sh --path run_long_tests.sh --path run_tests.sh --path requirements.txt --path .gitignore --path .pylintrc --path .style.yapf 
Parsed 390 commits
New history written in 0.30 seconds; now repacking/cleaning...
Repacking your repo and cleaning out old unneeded objects
HEAD is now at 34a32a5 Product measurement/characterization revision to the schema (#496)
Enumerating objects: 533, done.
Counting objects: 100% (533/533), done.
Delta compression using up to 12 threads
Compressing objects: 100% (191/191), done.
Writing objects: 100% (533/533), done.
Total 533 (delta 265), reused 528 (delta 261), pack-reused 0
Completely finished after 0.54 seconds.