Optimize import in generated files

[andreacivita]

Some stub files has not optimized import. It would be nice to fix this.

E.g. (supposing Model name is Car in namespace App\Models

in Test stub, setUp method is:

public function setUp() : void
    {
        parent::setUp();

        $this->car = \App\Models\Car::factory()->make();
    }

and should be

use App\Models\Car;

public function setUp() : void
    {
        parent::setUp();

        $this->car = Car::factory()->make();
    }

This should be applied to all stubs, and it will produce optimized imports and better code.

[maxvrdev]

I would like to work on this issue.

[andreacivita]

Some imports are still wrong.