Add message module for terminal output

[ashleymichal]

fixes #219

• include semantic commands for success, info, warn, etc.
• alphabetize emoji 🤓
• replace some remaining inline emoji

[ashleygwilliams]

looks like you have an import error and some dead code warnings! lemme know if you need help with those :)

[ashleygwilliams]

adding @granjef3 as a reviewer as we'll tap him to finish out this migration :)

[xortive]

I like this cleanup a lot. The unused emojis/functions clippy sees are definitely useful, and I think it would be better to find a place for them to be used then to delete them.

[ashleygwilliams]

lgtm! there's a little more work left to audit the whole codebase and make sure everything is consistent- i'd recommend merging this ASAP to establish the pattern, maybe @granjef3 can take on the full audit post merge?

[xortive]

LGTM. quick grep for stray "println!" only shows some in the installer.