Fixed issues#769 : Add newtypes for UserId, GroupId and ProcessId

[ZhangHanDong]

fixed #769

[codecov]

Codecov Report

Attention: Patch coverage is 84.23645% with 32 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
src/system/mod.rs	80.00%	8 Missing ⚠️
src/exec/mod.rs	0.00%	5 Missing ⚠️
src/exec/use_pty/backchannel.rs	0.00%	3 Missing ⚠️
src/exec/use_pty/monitor.rs	0.00%	3 Missing ⚠️
src/system/timestamp.rs	85.71%	3 Missing ⚠️
src/common/error.rs	0.00%	2 Missing ⚠️
src/exec/interface.rs	0.00%	1 Missing ⚠️
src/exec/no_pty.rs	0.00%	1 Missing ⚠️
src/exec/use_pty/parent.rs	0.00%	1 Missing ⚠️
src/su/context.rs	50.00%	1 Missing ⚠️
... and 4 more

Files with missing lines	Coverage Δ
src/common/command.rs	91.66% <100.00%> (ø)
src/common/context.rs	89.79% <100.00%> (ø)
src/sudo/env/tests.rs	99.10% <100.00%> (ø)
src/sudo/mod.rs	0.00% <ø> (ø)
src/sudoers/mod.rs	73.02% <100.00%> (ø)
src/sudoers/test/mod.rs	98.20% <100.00%> (+<0.01%)	⬆️
src/system/interface.rs	97.36% <100.00%> (+3.33%)	⬆️
src/system/term/mod.rs	64.92% <100.00%> (-0.23%)	⬇️
src/system/wait.rs	86.86% <100.00%> (-0.64%)	⬇️
src/exec/interface.rs	0.00% <0.00%> (ø)
... and 13 more

... and 13 files with indirect coverage changes

[squell]

Can you rebase this on the current main? And also, would you like some assistance with the compliance test failure?

[squell]

Superseded by #879; the issue this PR attempts to fix is now already closed. Thanks for you efforts, however!