Add `--version` command/flag to CLI

[0xdevalias]

Overview

I propose adding a --version command to the reminders-cli tool. This command would help users easily determine the currently installed version of reminders-cli.

Rationale

• Ease of Use: Users can quickly verify the version they are working with, which is essential for troubleshooting and ensuring compatibility with different macOS versions.
• Consistency with Other Tools: Many CLI tools include a --version command, so its inclusion would align reminders-cli with common CLI practices.
• Support and Troubleshooting: When seeking help or reporting issues, users can readily provide the version number, streamlining support processes.

Suggested Implementation

• When the user inputs reminders --version, the CLI should return the current version number of the reminders-cli tool in a clear and concise format.
• This feature should be accessible without any additional arguments or permissions.

Current Workaround

Currently, users must rely on other methods to determine the installed version of reminders-cli, which can be cumbersome and less straightforward.

Additional Information

• Implementation of this feature would significantly enhance the user experience and align with standard practices in CLI tool design.

Environment

• reminders-cli version: 2.4.0
• macOS version: Ventura 13.5