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### _Why are the changes needed?_
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Track operation state change and support output to custom system.
### _How was this patch tested?_
- [X] Add some test cases that check the changes thoroughly including negative and positive cases if possible
- [ ] Add screenshots for manual tests if appropriate
- [ ] [Run test](https://kyuubi.readthedocs.io/en/latest/develop_tools/testing.html#running-tests) locally before make a pull request
Closes#968 from hddong/add-server-events.
Closes#922
8be8f268 [hongdongdong] Add prefix for StatementEvent
9fdcc504 [hongdongdong] fix comment
a0cdb35d [hongdongdong] fix test
4d340c67 [hongdongdong] add dependency
00920751 [hongdongdong] [KYUUBI#922]Add OperationEvent for server to track operation state
Authored-by: hongdongdong <hongdongdong@cmss.chinamobile.com>
Signed-off-by: ulysses-you <ulyssesyou18@gmail.com>
d704e4d49d