linbiao666

### Description 在计划任务里添加倒计时执行单次或者多次执行 ### Reason 新版本没有这项功能

[Idea] 希望ChatBot.Farmer能适配1.12.2

1

### Prerequisites - [x] I have read and understood the [user manual](https://mccteam.github.io/guide/) - [x] I made sure I am running the latest [development build](https://github.com/MCCTeam/Minecraft-Console-Client/releases/latest) - [x] I tried to [look...

### Prerequisites - [x] I made sure I am running the latest [development build](https://github.com/MCCTeam/Minecraft-Console-Client/releases/latest) - [x] I tried to [look for similar issues](https://github.com/MCCTeam/Minecraft-Console-Client/issues?q=is%3Aissue) before opening a new one - [x]...