Loguru integration

[bbonenfant]

Exploratory ticket on the use of loguru within snappiershot.

Some topics to cover:

• Do we want to add a dependency like this (if not could we have this be an optional "feature")?
• How is logging typically done within packages and/or plugins?
• What would we be logging within snappiershot? How would users find and interact with these logs?

[lenabradley]

I'm undecided if logging really makes sense here or not (loguru-based or otherwise); I go back and forth depending on the day

Random thoughts:

• if we do add logging, it should be off-by-default & something that package-developers can turn on as needed
• things we might want to log:
  • details about gathering/recording/looking-up snapshot context
  • details about file reading/writing
  • details about which custom en/decoders are being used/called
• while this could all be useful, i'm currently inclined to say we shoudl hold off and add it when we actually start to feel the need for these things.
• loguru vs logging:
  • loguru:
    • pros: easy to use, easy for outside developers to quickly learn & add/modify
    • cons: added dependency, could cause confusion to users
  • logging:
    • pros: in standardlib so no added dependency
    • cons: harder to setup initially, maybe harder for some developers to learn & use

[bbonenfant]

I agree that any logging should be off-by-default and that we should hold off for now until we see for use cases.
Also, I believe that we should use logging over loguru to avoid a potentially heavy dependency.