[5.7] Enable passing options to custom presets

[connectkushal]

The ability to create our own presets is very convenient. But currently it is not possible to have customization in the user made preset commands by passing options to it. For example if i am making a preset for tachyon css and want the dev to choose a js framework from either vue or react along with the choice of creating auth pages or not, its not possible with php artisan preset tachyon alone.

This pr enables passing of multiple values to the custom presets through --option=, which can be used as ...
php artisan preset tachyon --option=vue --option=cdn --option=version:4.0 or
php artisan preset tachyon --option=react --option=auth
.
This opens many possibilities for creating presets which will simplify and make frontend dev much faster.

This is a non breaking change and works as intended without affecting the default presets.

---

The array of values passed can be accessed in the following way.

PresetCommand::macro('tachyon', function($command){
    $options =  $command->option('option'), 
    ....
    ....
});

---

[taylorotwell]

Why not just something like option?

[connectkushal]

@taylorotwell i'll update the description and name if option seems more appropriate.

[taylorotwell]

I would prefer option over pass.

[connectkushal]

@taylorotwell done