use CRUD facade instead of this crud object in controllers by default

Author: tabacitu

src/Console/Commands/CrudControllerBackpackCommand.php

@@ -146,8 +146,8 @@ protected function replaceSetFromDb(&$stub, $name)
         }
 
         // replace setFromDb with actual fields and columns
-        $stub = str_replace('$this->crud->setFromDb(); // fields', implode(PHP_EOL.'        ', $fields), $stub);
-        $stub = str_replace('$this->crud->setFromDb(); // columns', implode(PHP_EOL.'        ', $columns), $stub);
+        $stub = str_replace('CRUD::setFromDb(); // fields', implode(PHP_EOL.'        ', $fields), $stub);
+        $stub = str_replace('CRUD::setFromDb(); // columns', implode(PHP_EOL.'        ', $columns), $stub);
 
         return $this;
     }

src/Console/stubs/crud-controller.stub

@@ -21,21 +21,21 @@ class DummyClassCrudController extends CrudController
 
     public function setup()
     {
-        $this->crud->setModel(\App\Models\DummyClass::class);
-        $this->crud->setRoute(config('backpack.base.route_prefix') . '/dummy_class');
-        $this->crud->setEntityNameStrings('dummy_class', 'DummyTable');
+        CRUD::setModel(\App\Models\DummyClass::class);
+        CRUD::setRoute(config('backpack.base.route_prefix') . '/dummy_class');
+        CRUD::setEntityNameStrings('dummy_class', 'DummyTable');
     }
 
     protected function setupListOperation()
     {
-        $this->crud->setFromDb(); // columns
+        CRUD::setFromDb(); // columns
     }
 
     protected function setupCreateOperation()
     {
-        $this->crud->setValidation(DummyClassRequest::class);
+        CRUD::setValidation(DummyClassRequest::class);
 
-        $this->crud->setFromDb(); // fields
+        CRUD::setFromDb(); // fields
     }
 
     protected function setupUpdateOperation()