Add a `takeout shell` command

[tonysm]

Added

• Adds a takeout shell {service} command to get a shell inside any container started with Takeout
• Fixes the CouchDB not starting. Looks like we now need to pass a user and password config
• Fixes the EventStoreDB. The flags that were passed no longer work
• Fixes OpenSearch not starting, the security plugin should be disabled by default

---

closes #348

[tonysm]

I've tested it with all the supported containers.

[tonysm]

@mattstauffer ready for review again!