[13.x] Add input() method to console commands

[stevebauman]

Description:

This PR adds an input() method to console commands that returns a CommandInput instance, giving you the same fluent, typed data accessors available on Request, ValidatedInput, and Fluent instances ($request->enum('...'), date(), integer(), string(), boolean(), collect(), etc.) when working with a command's arguments and options.

The CommandInput instance contains all of the command's arguments and options merged together, with arguments taking precedence when keys collide. You may also access them independently via the $input->arguments() and $input->options() methods if necessary.

Example:

use App\Enums\ReportType;
use Illuminate\Console\Command;

class GenerateReport extends Command
{
    protected $signature = 'report:generate {type} {--from=} {--to=}';

    public function handle(): void
    {
        $input = $this->input();

        $type = $input->enum('type', ReportType::class);
        $from = $input->date('from');
        $to = $input->date('to');

        // Generate the report...
    }
}

Let me know your thoughts! ❤️

[taylorotwell]

Thanks!