请求此方法，用于新增 Bug 反馈，新增 Bug 时可以绑定所属产品、项目、优先级等相关信息，并指派给某个用户。

public function addBug()
{
    include_once('../vendor/zentao/zentao.php');
    $zentao = new \zentao();
    $params = array(
        'product'        => 1,
        'module'         => 2,
        'project'        => 1,
        'openedBuild'    => array('trunk', 3, 2),
        'assignedTo'     => 'lisi',
        'deadline'       => '2019-11-21',
        'type'           => 'codeerror',
        'os'             => 'windows',
        'browser'        => 'ie11',
        'title'          => '添加bug测试四',
        'color'          => '#2dbdb2',
        'severity'       => 2,
        'pri'            => 1,
        'steps'          => '重现步骤描述添加bug测试四',
        'story'          => 0,
        'task'           => 0,
        'mailto'         => array('lisi', '张三'),
        'keywords'       => 'bug4'
    );    // 请求参数
    $result = $zentao->addBug($params);
    return $result;
}

{
    "status": 1,
    "msg": "success",
    "result": "保存成功"
}

{
    "status": 0,
    "msg": "error",
    "result": {
        "title": [
            "『Bug标题』不能为空。"
        ]
    }
}