Switch print logic to logger for CLI

[MarcinMaciaszek]

We are using prints for CLI actions, let's move it to the dedicated logger. Once logger would be available we can provide better prints during data import to rfhub2.

[MarcinMaciaszek]

@MaciejWiczk I had a look at it, and it doesn't make sense to use logger for a few messages, let me know if clock echo makes sense. Otherwise, we can close it :-) https://github.com/pbylicki/rfhub2/compare/feature/rfhub2-367-switch-to-logger-in-cli?expand=1

[MaciejWiczk]

@MaciejWiczk I had a look at it, and it doesn't make sense to use logger for a few messages, let me know if clock echo makes sense. Otherwise, we can close it :-) https://github.com/pbylicki/rfhub2/compare/feature/rfhub2-367-switch-to-logger-in-cli?expand=1

I didn't know that click had echo. I like its simplicity :) Could You also bump version when creating PR?