freshen up udeb, reintegrate with modern debian-installer #143
Description
My talk for Debconf21, "proposal for a new d-i disk preparation tool", has been accepted. I'll need be able to demo growlight as part of the debian-installer for this (2021 August 28), which means I'll need a fresh udeb of growlight. See dankamongmen/notcurses#2004 for the bug on a udeb of libnotcurses-core2.
Get growlight packaged as a udeb, and integrated with the modern Debian Installer well enough to do a few QEMU demos and blow some motherfuckers' minds.