yschengzi

[IOTDB-3656] mpp load

1

design doc:https://apache-iotdb.feishu.cn/docx/doxcnyBYWzek8ksSEU6obZMpYLe

Problem: 1. suddenly stop without command 2. can not transport all data

- [x] support load .mods - [ ] last cache - [ ] clean up - [ ] tsfile name restriction

problem: https://apache-iotdb.feishu.cn/docx/YOGldZTBionIBIxCmKrcP6WNnzg The same situation in ExtPipePluginRegister. solution: replace FileUtils.listFiles with try-catch and FileUtils.steamFiles.

- Support collect DeleteTimeseries in sender - Support load DeleteTimeseries in receiver