Remove the notion of "sys*"

- This idea originates from very early in the project and was, at the
  time, a very easy way to categorise things.
- Now, it doesn't really make much sense - it is fairly arbitary, often
  occuring when there is a change in kernel, but not from builder-hex0
  to fiwix, and sysb is in reality completely unnecessary.
- In short, the sys* stuff is a bit of a mess that makes the project
  more difficult to understand.
- This puts everything down into one folder and has a manifest file that
  is used to generate the build scripts on the fly rather than using
  coded scripts.
- This is created in the "seed" stage.

stage0-posix -- (calls) --> seed -- (generates) --> main steps

Alongside this change there are a variety of other smaller fixups to the
general structure of the live-bootstrap rootfs.

- Creating a rootfs has become much simpler and is defined as code in
  go.sh. The new structure, for an about-to-be booted system, is

/
-- /steps (direct copy of steps/)
-- /distfiles (direct copy of distfiles/)
-- all files from seed/*
-- all files from seed/stage0-posix/*

- There is no longer such a thing as /usr/include/musl, this didn't
  really make any sense, as musl is the final libc used. Rather, to
  separate musl and mes, we have /usr/include/mes, which is much easier
  to work with.
- This also makes mes easier to blow away later.
- A few things that weren't properly in packages have been changed;
  checksum-transcriber, simple-patch, kexec-fiwix have all been given
  fully qualified package names.
- Highly breaking change, scripts now exist in their package directory
  but NOT WITH THE packagename.sh. Rather, they use pass1.sh, pass2.sh,
  etc. This avoids manual definition of passes.
  - Ditto with patches; default directory is patches, but then any patch
    series specific to a pass are named patches-passX.

sysa/kbd-1.15/patches/resizecons.patch

@@ -1,34 +0,0 @@
-SPDX-FileCopyrightText: 2022 fosslinux <fosslinux@aussies.space>
-
-SPDX-License-Identifier: GPL-2.0-or-later
-
-Don't build resizecons (will not build in chroot).
-
---- src/Makefile.am	2022-02-26 14:11:22.577168053 +1100
-+++ src/Makefile.am	2022-02-26 14:11:34.641835790 +1100
-@@ -10,10 +10,6 @@
- PROGS += getkeycodes setkeycodes
- endif
- 
--if RESIZECONS_PROGS
--PROGS += resizecons
--endif
--
- if OPTIONAL_PROGS
- PROGS += \
- 	screendump setlogcons setvesablank spawn_console spawn_login \
---- configure.ac	2022-02-26 14:10:50.047367229 +1100
-+++ configure.ac	2022-02-26 14:11:15.310765839 +1100
-@@ -53,12 +53,6 @@
- esac
- AM_CONDITIONAL(KEYCODES_PROGS, test "$KEYCODES_PROGS" = "yes")
- 
--case $host_cpu in
--	i?86*) RESIZECONS_PROGS=yes ;;
--	*)     RESIZECONS_PROGS=no ;;
--esac
--AM_CONDITIONAL(RESIZECONS_PROGS, test "$RESIZECONS_PROGS" = "yes")
--
- AC_ARG_ENABLE(optional-progs,
- 	AS_HELP_STRING(--enable-optional-progs, [Build and install a optional programs]),
- 	[OPTIONAL_PROGS=$enableval],[OPTIONAL_PROGS=no])