[1.7.0] Add tenants:run (#81)

* wip

* Apply fixes from StyleCI

* first implementation

* Apply fixes from StyleCI

* Add support for arguments and options

* Apply fixes from StyleCI

* Write docs, add support for = in arg/opt value

* Apply fixes from StyleCI

* add $ [ci skip]

tests/Etc/ConsoleKernel.php

@@ -0,0 +1,17 @@
+<?php
+
+namespace Stancl\Tenancy\Tests\Etc;
+
+use Orchestra\Testbench\Console\Kernel;
+
+class ConsoleKernel extends Kernel
+{
+    /**
+     * The Artisan commands provided by your application.
+     *
+     * @var array
+     */
+    protected $commands = [
+        ExampleCommand::class,
+    ];
+}

tests/Etc/ExampleCommand.php

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+<?php
+
+namespace Stancl\Tenancy\Tests\Etc;
+
+use Illuminate\Console\Command;
+
+class ExampleCommand extends Command
+{
+    /**
+     * The name and signature of the console command.
+     *
+     * @var string
+     */
+    protected $signature = 'foo {a} {--b=} {--c=}';
+
+    /**
+     * Execute the console command.
+     *
+     * @return mixed
+     */
+    public function handle()
+    {
+        User::create([
+            'id' => 999,
+            'name' => 'Test command',
+            'email' => 'test@command.com',
+            'password' => bcrypt('password'),
+        ]);
+
+        $this->line("User's name is " . User::find(999)->name);
+        $this->line($this->argument('a'));
+        $this->line($this->option('c'));
+    }
+}
+
+class User extends \Illuminate\Database\Eloquent\Model
+{
+    protected $guarded = [];
+}