update URLs to use the new ARCH-OS ordering

add persistent install-dir setting

support 3rd party index

support more cpu arches for linux

Co-authored-by: Matheus C. França <matheus-catarino@hotmail.com>

build windows ci target in ReleaseSafe for faster zip extraction

gracefully handle PATH entires we don't have access to

Fixes an issue reported by user tech189 in issue #104.

handle when zig path link exists as a non-symlink entry

zig update 0.11.0-dev.4002+7dd1cf26f

Merge pull request #67 from xEgoist/master

Add CI build for aarch64 for all platforms

zig update: accomodate language changes and fix non-release URL