WIP: added pdo proxy

[PandaLIU-1111]

使用 pdo proxy 需要在 hyperf 项目内 /config/autoload/annotations.php 增加以下内容

return [
    'scan' => [
        'class_map' => [
            Connector::class => BASE_PATH . '/vendor/seata/seata/src/Rm/DataSource/ClassMap/Connector.php',
        ],
    ],
];

[VinchanGit]

'publish' => [ [ 'id' => 'config', 'description' => 'The config of message client.', 'source' => __DIR__ . '/../publish/seata.php', 'destination' => BASE_PATH . '/config/autoload/seata.php', ], ],这里要不要把publish 完善一下？

[PandaLIU-1111]

Hyperf，现在你在 ConfigProvider 加上 class_map 也没用，ConfigProvider 里面我没记错他是没支持 class_map 的

[CLAassistant]

Thank you for your submission! We really appreciate it. Like many open source projects, we ask that you sign our Contributor License Agreement before we can accept your contribution.
_{You have signed the CLA already but the status is still pending? Let us recheck it.}