ETT-1793 solr init script

[aelkiss]

Relevant commit: 49bdb0b

See hathitrust/lss_solr_configs#24

Needs to wait for #248 to be merged.

Updates health check.

Recommended testing procedure:

First make sure everything solr related is cleaned out:

docker compose --profile solr9 down
docker system prune
docker volume rm babel_zoo1_data babel_solr1_data
docker compose --profile solr9 up

You should (eventually) see solr come up & create the collection, and docker ps should show the container as healthy.

Then:

• stop it with ctrl-c
• restart with docker compose --profile solr9 up

You should (eventually) see a message from the solr container that the collection already exists, and docker ps should show the container as healthy.

[liseli]

I've tested locally and it works

[aelkiss]

I'll rebase and then go ahead and merge this.

[aelkiss]

Rebased & force pushed; once tests pass I will merge.