Add actions

[nikola-rados]

Changes

• Add docker publishing workflow
• Add anchore scan workflow
• Add node test workflow
• Add pypi publishing workflow
• Add python test workflow
• Update .gitignore
• Remove travis
• Heavily reduce Jenkins responsibilities
• Mark pytest tests

Notes

This is a big step towards replacing Jenkins in this repo. The only thing Jenkins remains responsible for is running tests that require a database connection.

Resolves #179.