Handling oauth accessdenied

Nobody has claimed this yet.

Hi -
I've come across an issue where in #117 @ fetchResource in
../vendor/codemix/restyii/src/Restyii/Client/Schema/Schema.php

$config will be e.g.

```
array(8) {
'code' =>
int(403)
'type' =>
string(14) "CHttpException"
'errorCode' =>
int(0)
'message' =>
string(46) "You are not authorized to perform this action."
'file' =>
string(71) "/vagrant/vendor/yiisoft/yii/framework/web/auth/CAccessControlFilter.php"
'line' =>
int(182)
'trace' =>
string(1253) "#0 /vagrant/vendor/yiisoft/yii/framework/web/auth/CAccessControlFilter.php(145): CAccessControlFilter->accessDenied(Object(WebUser), \'You are not aut...\')\n#1 /vagrant/vendor/yiisoft/yii/framework/web/filters/CFilter.php(38): CAccessControlFilter->preFilter(Object(CFilterChain))\n#2 /vagrant/vendor/yiisoft/yii/framework/web/CController.php(1145): CFilter->filter(Object(CFilterChain))\n#3 /vagrant/vendor/yiisoft/yii/framework/web/filters/CInlineFilter.php(58): CController->filterAccessControl(Object(CFilte"...
'traces' =>

```

This results in

```
[..]/Restyii/Client/Schema/AbstractEntity.php(33): CComponent->__set('code', 403)
// -->
exception 'CException' with message 'Property "Restyii\Client\Schema\Resource.code" is not defined.' [..]/vendor/yiisoft/yii/framework/base/CComponent.php:173
```

Start at fetchResource in vendor/codemix/restyii/src/Restyii/Client/Schema/Schema.php and trace how the 403 access-denied response reaches AbstractEntity.php. Reproduce the failure and inspect the reported Resource.code assignment; the issue does not specify the intended behavior after access denial, so confirm the expected outcome before defining what done means.

Written by the indexing model from the issue text.