New port: lang/vlang: Simple, fast, safe, compiled language

[0mp]

Summary

New port: lang/vlang: Simple, fast, safe, compiled language

The future maintainer of this port should make sure that do-test passes and
that the port builds just fine in poudriere.

PR: https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=239348

Test Plan

• make test should pass (test on 11.3 i386 in particular)

[linimon]

Now see update to Makefile in D22010.

[0mp]

Integrate changes from D22010.

The tests are still broken. On amd64 they are not supported and on i386 they just error out at some point without any comment.