Extract process management and POSIX syscall implementations · Pull Request !196 · openKylin（孵化期）/x-kernel

1. fix fmt
2. Extract process management and POSIX syscall implementations into stan…
3. Refactor posix-types time module
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## Additional Context

类型	指派人员	状态
审查	Debin 郭伟康于博	进行中 (0/1人)
测试	王1宁 x-cibot	进行中 (0/1人)

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