序列化表格 (dami 0.53 API)

程序包 org.noear.dami.bus
程序包 org.noear.dami.bus.impl
- 类org.noear.dami.bus.impl.PayloadDefault扩展Object实现可序列化
  - 序列化字段
    - guid
```
String guid
```
    - topic
```
String topic
```
    - content
```
Object content
```
    - attachments
```
Map<K,V> attachments
```
    - handled
```
boolean handled
```
程序包 org.noear.dami.exception
- 类org.noear.dami.exception.DamiException扩展RuntimeException实现可序列化
- 类org.noear.dami.exception.DamiNoSubscriptionException扩展DamiException实现可序列化

序列化表格