Introduce a "net" module?

[krader1961]

Should there be a net module that includes a ifaddrs command? While improving test coverage I noticed the -ifaddrs experimental command in pkg/eval/builtin_fn_misc.go has no test coverage. As I write this here is the output I see on my primary MacPro server:

> -ifaddrs
▶ 127.0.0.1/8
▶ ::1/128
▶ fe80::1/64
▶ fe80::c3b:b807:bf46:17f7/64
▶ 2601:647:4600:7:1009:f734:4a3d:e7a1/64
▶ 192.168.1.102/24
▶ 2601:647:4600:7:d16e:87c0:e7c7:6a7a/64
▶ 2601:647:4600:7:6084:bf5:794e:5843/64
▶ 2601:647:4600:7:9590:6ca6:8d82:331b/64
▶ 2601:647:4600:7:8ca3:f48e:e026:9066/64
▶ 2601:647:4600:7:ad4b:b408:60c5:7b82/64
▶ 2601:647:4600:7:78cb:853c:7697:bf15/64
▶ 2601:647:4600:7:799c:3e75:1bae:8d5/64
▶ fe80::a4e5:6831:167f:5dc8/64
▶ fe80::f1f0:f68c:e83f:cded/64

It's not immediately obvious what purpose this command serves. The documentation says it should be part of a networking module; hence this issue. I think this command should be commented out until such time as it is moved to a net module and appropriate unit tests are written -- see issue #1062 about the need to improve test coverage.

[krader1961]

I am still perplexed why this experimental command exists. 😄