Added nginx and oragono HUP reloading to systemd handlers. Added nginx config.
---
oragono_user: "oragono"
oragono_version: "2.1.0"
oragono_arch: "arm64"
oragono_tar_name: "oragono-{{oragono_version}}-linux-{{oragono_arch}}"
oragono_tar: "{{oragono_tar_name}}.tar.gz"
oragono_url: "https://github.com/oragono/oragono/releases/download/v{{oragono_version}}/{{oragono_tar}}"