change namespace and cleanup code

src/Accounts/Exceptions/MissingScopeException.php

@@ -0,0 +1,41 @@
+<?php
+
+namespace Bitinflow\Accounts\Exceptions;
+
+use Illuminate\Auth\Access\AuthorizationException;
+use Illuminate\Support\Arr;
+
+class MissingScopeException extends AuthorizationException
+{
+    /**
+     * The scopes that the user did not have.
+     *
+     * @var array
+     */
+    protected $scopes;
+
+    /**
+     * Create a new missing scope exception.
+     *
+     * @param array|string $scopes
+     * @param string $message
+     *
+     * @return void
+     */
+    public function __construct($scopes = [], $message = 'Invalid scope(s) provided.')
+    {
+        parent::__construct($message);
+
+        $this->scopes = Arr::wrap($scopes);
+    }
+
+    /**
+     * Get the scopes that the user did not have.
+     *
+     * @return array
+     */
+    public function scopes()
+    {
+        return $this->scopes;
+    }
+}