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.

sysc/perl-5.32.1/patches/reproducibility2.patch

@@ -1,47 +0,0 @@
-SPDX-FileCopyrightText: 2021 fosslinux <fosslinux@aussies.space>
-
-SPDX-License-Identifier: Artistic-1.0
-
-Set some things that cannot be overriden in the perl Configure script to
-generate with correct values for live-bootstrap.
-
-NOTE: this patch CANNOT be applied to a non-live-bootstrap environment.
-
---- ../metaconfig-5.32.1~rc1/dist/U/archname.U	2022-02-26 10:51:45.343097807 +1100
-+++ ../metaconfig-5.32.1~rc1/dist/U/archname.U	2022-02-26 10:51:51.742527859 +1100
-@@ -72,5 +72,5 @@
- rp='What is your architecture name'
- . ./myread
- archname="$ans"
--myarchname="$tarch"
-+myarchname="i386"
- 
---- ../metaconfig-5.32.1~rc1/dist/U/Oldconfig.U	2022-02-27 10:55:04.890396204 +1100
-+++ ../metaconfig-5.32.1~rc1/dist/U/Oldconfig.U	2022-02-27 11:00:31.324396204 +1100
-@@ -109,16 +109,13 @@
- ?LINT:extern hostarch libswanted libs
- ?LINT:change hostarch libswanted libs
- : Determine the name of the machine
--myuname=`$uname -a 2>/dev/null`
--$test -z "$myuname" && myuname=`hostname 2>/dev/null`
- ?X: Special mention for Xenix, whose 'uname -a' gives us output like this:
- ?X:  sysname=XENIX
- ?X:  nodename=whatever
- ?X:  release=2.3.2 .. etc...
- ?X: Therefore, we strip all this variable assignment junk and remove all the
- ?X: new lines to keep the myuname variable sane... --RAM
--myuname=`echo $myuname | $sed -e 's/^[^=]*=//' -e 's/\///g' | \
--	./tr '[A-Z]' '[a-z]' | $tr $trnl ' '`
-+myuname=""
- ?X: Save the value we just computed to reset myuname after we get done here.
- newmyuname="$myuname"
- has_uname=
-@@ -277,7 +274,7 @@
- 		;;
- 	linux) osname=linux
- 		case "$3" in
--		*)	osvers="$3" ;;
-+		*)	osvers="4.9.10-gnu_1" ;;
- 		esac
- 		;;
- 	MiNT) osname=mint