Add support for dedicated eloquent builders and type/doc parameter support. (#1089)

* Add support for generating helpers for external eloquent builders

* Extract external builder methods generator to its own method and add an option to toggle this feature

* Check if we are using the default name of the eloquent builder

* Add tests with snapshots for external eloquent builder feature

* Refactor codegs

* Allow for type hinting

* Update test

* Run cs fix

* Update readme

* Use getName for parameter instead of relying on __toString()

* Do not use str_contains and use built in php method

tests/Console/ModelsCommand/GeneratePhpdocWithExternalEloquentBuilder/Models/Post.php

@@ -0,0 +1,16 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Barryvdh\LaravelIdeHelper\Tests\Console\ModelsCommand\GeneratePhpdocWithExternalEloquentBuilder\Models;
+
+use Barryvdh\LaravelIdeHelper\Tests\Console\ModelsCommand\GeneratePhpdocWithExternalEloquentBuilder\Builders\PostExternalQueryBuilder;
+use Illuminate\Database\Eloquent\Model;
+
+class Post extends Model
+{
+    public function newEloquentBuilder($query): PostExternalQueryBuilder
+    {
+        return new PostExternalQueryBuilder($query);
+    }
+}