Add CLI helper

[hrajwade96]

Feature: CLI Helper Support

Description

Add support for a command-line interface (CLI) helper. This feature will provide users with assistance on how to use the tool, including available commands, options, and usage examples.

Tasks

• Implement a CLI helper that displays available commands and their descriptions.
• Add a --help or -h option to display the helper information.
• Ensure the CLI helper includes usage examples.

Example

When a user runs the following command:

flutter_plugins_list --help

Output could be :

flutter_plugins_list: A tool to list and manage Flutter plugin dependencies.

Usage:
flutter_plugins_list [options]

Options:
--help, -h Display this help message and exit.
--version, -v Display the version information and exit.
--output, -o Specify the output format (csv, json).

Examples:
flutter_plugins_list --help
flutter_plugins_list --output csv