test: refactor test framework to use a rootfs skeleton

Instead of having to create files, and copying them in place for each
test, we move all static test files to a skeleton rootfs.  This makes
it a lot easier to get an overview of how things and how they work.

Signed-off-by: Joachim Wiberg <troglobit@gmail.com>

test/Makefile.am

@@ -1,6 +1,21 @@
 SUBDIRS                  = common tenv
 
-EXTRA_DIST		 = setup-root.sh
+EXTRA_DIST		 = skel/bin/busybox-x86_64.md5 skel/bin/service.sh skel/bin/slay \
+			   skel/cdrom/.empty skel/dev/shm/.empty skel/dev/pts/.empty	 \
+			   skel/etc/inittab skel/etc/hostname skel/etc/fstab 		 \
+			   skel/etc/init.d/rcS skel/etc/init.d/rcK skel/tmp/.empty	 \
+			   skel/etc/init.d/S01-service.sh skel/home/.empty		 \
+			   skel/proc/.empty skel/root/.empty skel/run/.empty		 \
+			   skel/sbin/chrootsetup.sh skel/srv/.empty skel/sys/.empty	 \
+			   skel/usr/bin/.empty skel/usr/lib/.empty skel/usr/sbin/.empty	 \
+			   skel/usr/games/.empty skel/usr/src/.empty			 \
+			   skel/usr/share/.empty skel/usr/include/.empty		 \
+			   skel/usr/local/games/.empty skel/usr/local/sbin/.empty	 \
+			   skel/usr/local/share/.empty skel/usr/local/src/.empty	 \
+			   skel/usr/local/lib/.empty skel/usr/local/bin/.empty		 \
+			   skel/usr/local/etc/.empty skel/var/run
+
+EXTRA_DIST		+= setup-root.sh
 EXTRA_DIST		+= add-remove-dynamic-service.sh
 EXTRA_DIST		+= add-remove-dynamic-service-sub-config.sh
 EXTRA_DIST		+= start-stop-service.sh