Implement channel_id command

[aninhasalesp]

Add command to extract youtube channel IDs from URLs and generate CSV

Overview

This PR introduces the ChannelId command, which extracts YouTube channel IDs from URLs or from a CSV file containing URLs and generates a CSV file with the channel IDs. Additionally, it refactors the CLI tool to use a command-based structure, with a base Command class to standardize command implementation.

Features

• Command Implementation: ChannelId command to handle the extraction of youtube channel IDs.
• Command execution: Enhanced execute method to handle the end-to-end process of fetching channel IDs and generating the output CSV.
• Command Base Class: Implemented Command as a foundational class for defining CLI commands.
• Default Execution Method: Introduced parse_arguments method to configure argument parsing and set execute method as the default action for each command.
• Extendable Execution Logic: Included an abstract execute method, to be overridden by subclasses, for executing command-specific logic.

Usage

To use the new ChannelId command:

1. From a list of URLs:

   python cli.py --api_key <api_key> channel-id --urls <url1> <url2> --output-file-path <output_path>

2. These are other ways to run the ChannelId command:

• The command was designed to extract the YouTube channel ID associated with a provided URL.

   python cli.py --api-key <api_key> channel-id --urls <url1>

• The command is used to perform automated extraction of YouTube channel IDs from URLs contained in a CSV file.

   python cli.py --api-key <api_key> channel-id --urls-file-path <input_csv_path>