Make the CLI more inclusive

[Uxío]

Analyze and implement if necesary recommendations from: https://seirdy.one/posts/2022/06/10/cli-best-practices/

[Felipe Alvarado]

After review and discussion with the team, the actions to be taken are:

• Improve the usage message when executing the --help command. Add usage examples.
• Add --version option in the safe-cli and safe-creator commands to improve debugging.
• Add message to be more user friendly once the safe information is listed.
• Add a help subcommand to list all options inside a safe.
• Add an exit subcommand to end the execution of safe-cli.