### _Why are the changes needed?_
Many kyuubi users are not familiar with kerberos authentication mechanism and encountered troubles connecting to kerberized Kyuubi.
### _How was this patch tested?_
- [ ] Add some test cases that check the changes thoroughly including negative and positive cases if possible
- [x] Add screenshots for manual tests if appropriate
Configurations are verified in #1432
- [ ] [Run test](https://kyuubi.readthedocs.io/en/latest/develop_tools/testing.html#running-tests) locally before make a pull request
Closes#1552 from zhouyifan279/1550.
Closes#1550
58e324a8 [zhouyifan279] [KYUUBI #1550] Add kerberos authentication flow
3b030a91 [zhouyifan279] [KYUUBI #1550] Add kerberos authentication flow
4449b689 [zhouyifan279] [KYUUBI #1550] Improve doc style
3aa8e20c [zhouyifan279] [KYUUBI #1550] Add Windows configuration steps
7e67cdc5 [zhouyifan279] [KYUUBI #1550] Capitalize title and emphasize the relation between KinitAuxiliaryService and Kerberos authentication
424e56b3 [zhouyifan279] [KYUUBI #1550] Rename client/kerberos.md to client/kerberized_kyuubi.md
d8977cea [zhouyifan279] [KYUUBI #1550] Provide a specific user guide about connecting to kerberized kyuubi
Authored-by: zhouyifan279 <zhouyifan279@gmail.com>
Signed-off-by: Kent Yao <yao@apache.org>