[2.2.0] Tenant aware commands (#221)

* wip

* Apply fixes from StyleCI

* Return value when a single tenant is passed

* array map -> foreach

* bug fixes

src/Traits/HasATenantArgument.php

@@ -0,0 +1,29 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Stancl\Tenancy\Traits;
+
+use Symfony\Component\Console\Input\InputArgument;
+
+trait HasATenantArgument
+{
+    protected function getArguments()
+    {
+        return array_merge([
+            ['tenant', InputArgument::REQUIRED, 'Tenant id', null],
+        ], parent::getArguments());
+    }
+
+    protected function getTenants(): array
+    {
+        return [tenancy()->find($this->argument('tenant'))];
+    }
+
+    public function __construct()
+    {
+        parent::__construct();
+
+        $this->specifyParameters();
+    }
+}