add cli option for log formatting (Closes #531)

[Baschtie]

What type of PR is this?
/kind feature

What this PR does / Why we need it:
this pr adds an option to chose between the following formatting option:

• auto - default option, detects if running in an interactive terminal and will choose either "json" or "plain"
• json - outputs logs in json
• plain - uses default tracing_subscriber output
• pretty - uses tracing_subscriber.pretty() output

How the options look

json

plain

pretty

Which issue(s) this PR fixes:
Closes #531

Special notes for your reviewer:
Not sure about the naming, "detect" could also be "auto" or if "pretty" should be something like "debug". I am also not sure if the "ppretty" option is needed at all.

updated with renamed options

[XAMPPRocky]

Thank you for your PR! This looks good to me, however I would change detect to auto, pretty to plain, and ppretty to pretty. I think that's a much more clear naming convention for describing what each of those options do.

[Baschtie]

agree and updated 👍

[quilkin-bot]

Build Succeeded 🥳

Build Id: aadc107f-4281-4037-b657-afc1ff2ea21a

The following development images have been built, and will exist for the next 30 days:

• us-docker.pkg.dev/quilkin/ci/quilkin:0.7.0-dev-6a991aa

To build this version:

git fetch [email protected]:googleforgames/quilkin.git pull/784/head:pr_784 && git checkout pr_784
cargo build