Add mes and mescc-tools-extra

mescc-tools-extra contains two important tools:
- cp
- chmod

mes first builds itself from a mes 0.21 seed as used by guix, and then
builds a mes 0.22 and then mes 0.22 using that created mes 0.22.

It does /not/ use bootstrap.sh as we don't have a proper shell at this
point, it has been manually adapted for kaem.

sysa/mes-0.22/scaffold/boot/05-big-list.scm

@@ -0,0 +1,28 @@
+;;; GNU Mes --- Maxwell Equations of Software
+;;; Copyright © 2018 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
+;;;
+;;; This file is part of GNU Mes.
+;;;
+;;; GNU Mes is free software; you can redistribute it and/or modify it
+;;; under the terms of the GNU General Public License as published by
+;;; the Free Software Foundation; either version 3 of the License, or (at
+;;; your option) any later version.
+;;;
+;;; GNU Mes is distributed in the hope that it will be useful, but
+;;; WITHOUT ANY WARRANTY; without even the implied warranty of
+;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;;; GNU General Public License for more details.
+;;;
+;;; You should have received a copy of the GNU General Public License
+;;; along with GNU Mes.  If not, see <http://www.gnu.org/licenses/>.
+
+(list 00 01 02 03 04 05 06 07 08 09
+      10 11 12 13 14 15 16 17 18 19
+      20 21 22 23 24 25 26 27 28 29
+      30 31 32 33 34 35 36 37 38 39
+      40 41 42 43 44 45 46 47 48 49
+      50 51 52 53 54 55 56 57 58 59
+      60 61 62 63 64 65 66 67 68 69
+      70 71 72 73 74 75 76 77 78 79
+      80 81 82 83 84 85 86 87 88 89
+      90 91 92 93 94 95 96 97 98 99)