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* Fix the following issues:
1. HashMap non-thread-safe issus
2. Fix the same problem in pr621, but use a better implementation

Add the following functions:
1. There is now a language cache inside getLanguage to prepare for different languages corresponding to different time zones where the accounts in the server are located

* add /language command,each account has their own Locate

1. HashMap non-thread-safe issus
2. Fix the same problem in pr621, but use a better implementation

Add the following functions:
1. There is now a language cache inside getLanguage to prepare for different languages corresponding to different time zones where the accounts in the server are located

* 修复一个Gson发序列化json文件的空值问题

* Improved fault tolerance for json file deserialization

* improve server side command line input

* prevent multiline logs from covering typed commands

* reduce text in console

* resolve conflicts caused by multilanguage
Co-authored-by: Magix <kobedo11@gmail.com>

* Add message handler so that the plugin can hook inside the `dropMessage` method for `Player` instance.

* [BREAK] proto auto compiled by gradle

* [BREAK] move proto to submodule

* update gitmodules

* [BREAK] move proto to submodule

* move proto to submodule

* fix merge conflict

* fix github action after merging

* fix merge conflicts and del submodule

* upload the proto

(without luas)

(without luas)