lang/zig-devel: NEW PORT - latest version of zig language
Adds latest development version of zig-lang - upcoming 0.12.
- based off https://reviews.freebsd.org/D41067
- with further changes from lang/zig which has evolved
- update MAINTAINER per email approval for lang/zig*
Test Plan: Tested on 14.0-RELEASE and 15.0-CURRENT.
Differential Revision: https://reviews.freebsd.org/D43416
Differential Revision: https://reviews.freebsd.org/D41067
Obtained from: Pero Orsolic <bsd@orsolic.org>