### _Why are the changes needed?_

Separate events to a submodule - kyuubi-event

### _How was this patch tested?_
- [ ] 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.apache.org/docs/latest/develop_tools/testing.html#running-tests

) locally before make a pull request

Closes #2392 from zhaomin1423/event-module.

Closes #2323

7efa923f [Min Zhao] fix unit test
07126f43 [Min Zhao] [KYUUBI #2323] Separate events to a submodule - kyuubi-event
cccbdf11 [Min Zhao] [KYUUBI #2323] Separate events to a submodule - kyuubi-event
194aca82 [Min Zhao] add shade and log4j to test/resources
f75891a1 [Min Zhao] [KYUUBI #2323] Separate events to a submodule - kyuubi-event
357395fa [Min Zhao] [KYUUBI #2323] Separate events to a submodule - kyuubi-event
b6dfd186 [Min Zhao] [KYUUBI #2323] Separate events to a submodule - kyuubi-event
fc876688 [Min Zhao] [KYUUBI #2323] Separate events to a submodule - kyuubi-event
1b86d41b [Min Zhao] seperate event
Authored-by: Min Zhao <zhaomin1423@163.com>
Signed-off-by: Kent Yao <yao@apache.org>