www/{nginx,nginx-devel,freenginx}: use lua-stream-nginx-module port

Replace the embedded LUASTREAM GH_TUPLE handling with a
BUILD_DEPENDS on www/lua-stream-nginx-module and use the
module sources from the dedicated port during the build.

Add freenginx compatibility patches for lua-stream-nginx-module.

Also update lua-stream-nginx-module to version 0.0.17.

PR: 294426
Sponsored by: Netzkommune GmbH