Prepare the Bootstrapping of Physical Hosts

[jonathanio]

This is the initial configuration to fully bootstrap physical hosts for the n3tuk Lab Environment, taking them from a live-boot environment (i.e. the Arch Linux .iso file on a USB service or attached to a drive within libvirtd) to an initial installation.

The server is configured with:

• The initial Arch Linux bootstrap configuration and files, and pacstrap installed base system;
• Secure Boot keys and Linux kernels configured for direct boot from the EFI filesystem using the UEFI firmware;
• Configuration of systemd;
• Networking configuration through systemd-networkd and DNS with systemd-resolved;
• Basic system configuration with issue, fish, starship, ssh, and sudo to provide remote user access and visual information about the server.

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