Add support for arm64
Currently, when built for arm64 (on FriendlyElec Neo2), Site.js runs but exits with the following error due to a lack of arm64-specific version of the mkcert binary in nodecert.
- Open issue in Auto Encrypt Localhost (site.js/lib/auto-encrypt-localhost#5 (closed))
- Upgrade to version of Auto Encrypt Localhost with arm64 binary.
- Open issue in Node Hugo (site.js/lib/node-hugo#4)
- Upgrade to version of Node Hugo with arm64 binary.
- Update build script to build arm64 version.