[Models] Fixed wrong imported name (#993)

* Fixes 992 (class names in phpdoc where using imported names incorrectly when writing to external file).
Disabled using imported name in external file, except for the models own name.

* Added missing declare strict types

tests/Console/ModelsCommand/GeneratePhpdocWithFqnInExternalFile/Builders/EMaterialQueryBuilder.php

@@ -0,0 +1,10 @@
+<?php declare(strict_types=1);
+
+namespace Barryvdh\LaravelIdeHelper\Tests\Console\ModelsCommand\GeneratePhpdocWithFqnInExternalFile\Builders;
+
+use Illuminate\Database\Eloquent\Builder;
+
+class EMaterialQueryBuilder extends Builder
+{
+
+}