Add validation to prompt

[natanfelles]

Usage example:

<?php namespace App\Commands;

use CodeIgniter\CLI\CLI;
use CodeIgniter\CLI\BaseCommand;

class UsersCreate extends BaseCommand
{
	protected $group       = 'Users';
	protected $name        = 'users:create';
	protected $description = 'Create user.';

	public function run(array $params)
	{
		// Title
		CLI::write('Users Create', 'yellow');

		// Inputs
		$name = CLI::prompt('Name', null, 'required|min_length[4]|max_length[32]');
		$email = CLI::prompt('Email', null, 'required|valid_email');
		$state = CLI::prompt('State', 'rs', 'in_list[rs,sc,pr]');
		$city = CLI::prompt('City', ['Porto Alegre','Florianópolis','Curitiba'], 'required');

		CLI::newLine();

		// Title
		CLI::write('User Data to be Registered', 'light_green');

		// Outputs
		CLI::write('Name: ' . $name);
		CLI::write('Email: ' . $email);
		CLI::write('State: ' . $state);
		CLI::write('City: ' . $city);

		CLI::newLine();

		// Call a Model...
	}

}

[lonnieezell]

Looks great. Thanks!