Everywhere: Remove everything non-essential for "make clean all"

This commit removes everything not strictly necessary for running
"make clean all" inside jw-build.

packaging jw-devtest. This cuts the repo down from 24077 to 4725
lines of code.

The idea is to

1) Further remove bloat from the remaining bits

2) Re-add what's necessary to build and package other essential repos.

   The decision should be based on whether or not jw-build can also be
   useful in a non-janware context.

Signed-off-by: Jan Lindemann <jan@janware.com>

scripts/python-tools.sh

@@ -1,81 +0,0 @@
-#!/bin/bash
-
-usage()
-{
-	cat <<-EOT
-
-	   usage $myname [-e sed-extract-command] [-m module] file.py ...
-
-	EOT
-	[ "$1" ] && exit $1
-}
-
-module_path()
-{
-	if [ "$module" ]; then
-		echo $module.$1
-		return
-	fi
-	echo $1
-}
-
-cmd_create_init()
-{
-	local import_submodules=0
-	local e f files base extracted module_path
-	local del="-------------------------- generated by $myname"
-	echo "# >> $del >>"
-	echo "from pkgutil import extend_path"
-	echo "from typing import Iterable"
-	echo "__path__ = extend_path(__path__, __name__) # type: ignore" # was "type Iterable[str]"
-	files="$*"
-	for f in $files; do
-		test -d $f && continue
-		base=${f##*/}
-		base=${base%.py}
-		if [ "$sed_extract_command" ]; then
-			#echo running $sed_extract_command on $f
-			extracted=`sed "$sed_extract_command" $f`
-			#extracted="$sed_extract_command"
-			for e in $extracted; do
-				echo "from `module_path $base` import $e"
-			done
-		fi
-	done
-	if [ "$import_submodules" = 1 ]; then
-		for f in $files; do
-			[ -f $f/__init__.py ] && echo "import `module_path $f` as $f"
-		done
-	fi
-	echo "# << $del <<"
-}
-
-# --------------------- here we go
-
-myname=`basename $0`
-
-eval set -- `getopt -o 'he:m:' "$@"`
-while [ "$1" != -- ]; do
-case $1 in
-	-e)
-		sed_extract_command="$2"
-		shift
-		;;
-	-m)
-		module=$2
-		shift
-		;;
-	-h)
-		usage 0;;
-	*)
-		echo unknown argument $1
-		usage 1;;
-esac
-shift
-done
-shift
-
-cmd=cmd_${1//-/_}
-shift
-
-eval $cmd $*