Feature: codelens to convert $fillable to $guarded

[damms005]

When php artisan make:model, Laravel defaults to protected $fillable = [];

Add a codelens that shows Convert to $guarded if:

• currently opened file is an Eloquent model
• underlying table has an id column that is a primary key.

The codelens action will be to replace the above with protected $guraded = ['id']