列出属性

列出模式属性。

请求示例：

GET /api/storage/v1/schema

结果示例：

{
    "properties": [{
        "description": "bob",
        "href": "/api/storage/v1/schema/bob",
        "property": "bob",
        "type": "String"
    },{
        "description": "boo",
        "href": "/api/storage/v1/schema/boo",
        "property": "boo",
        "type": "String"
    }]
}