Add gdcc/nginx:unstable image and dev_nginx container for IntelliJ Payara plugin workaround

[beepsoft]

What this PR does / why we need it:

Adds a nginx container to the docker setup. This could be used for various proxying stuff, but it is primarily added to work around a problem with the IntelliJ Payara plugin. It doesn't allow remote redeployment in case the Payara admin is served via HTTPS using a self-signed certificate, which is the case of the default dataverse container installation.

For more context see this discussion: https://dataverse.zulipchat.com/#narrow/stream/375812-containers/topic/faster.20redeploy

This nginx configuration provides an HTTP endpoint at port 4849, and proxies requests to the Payara admin console's HTTPS 4848 endpoint.

Special notes for your reviewer:

You need IntelliJ IDEA Ultimate Edition to have remote deployment available in the Payara plugin.

Suggestions on how to test this:

Build and start the Dataverse containers:

mvn -Pct clean package
mvn -Pct docker:run

1. Go to the Payara admin console (either at https://localhost:4848 or http://localhost:4849) and uninstall the dataverse application under Applications.
2. Install Payara plugin (https://plugins.jetbrains.com/plugin/15114-payara-platform-tools). You seem to need IDEA Ultimate Edition. You may apply for a free license here: https://www.jetbrains.com/community/education/
3. Add a remote run config and configure it to connect to localhost 4849 and then run it.
4. Try Run > Debugging actions > Update '...' application (cmd+f10) > Redeploy
5. In ~20 seconds it should rebuild and redeploy the application inside docker

[pdurbin]

Just gave @sekmiller a demo. 😄

Great stuff, @beepsoft !!! Thanks! As we discussed, I'll add a few docs and merge it.

Relates to:

• Faster turn-around times for devs using containers #9590

[pdurbin]

This working AMAZINGLY well! Merging! Thanks, @beepsoft!! 🎉 🚀

I'll add some docs in a new PR.