Add autentication to DMCI

[aheimsbakk]

Add simple API key or JWT autentication to DMCI with an NGINX proxy.

Example of API key auth: https://www.nginx.com/blog/deploying-nginx-plus-as-an-api-gateway-part-1/

[mortenwh]

• update and delete should perhaps only be done with review through the git repos, disable for most people
• insert should be by permission
• validate should be fully open to anyone(?)

[myggen]

Just a comment. This will make the whole ngnx config a secret I beleive? I was going through hops to avoid this with nats, event though it would have made the whole enchilada much simpler to understand and maintain .

[shamlymajeed]

Expecting only internal users and a handful number of users.
Moving forward with nginx api gateway .
Not sure about finishing before release.

[mortenwh]

@shamlymajeed - can this be prioritized?