Sequential numbering for configs and deployments will cause git conflicts

[mmarchetti]

Scenario:

• Two users are collaborating via git
• They each make a new branch, and create a deployment
• They try to merge

The files deployment-1.toml and configuration-1.toml will conflict with each other even though they are completely independent.

[sagerb]

Start using subdirectories for configs. No migration.

deployment files are named "deployment-" config files are named by random word generator - from backend.

In both cases, backend should generate names. APIs will need to change.