Add Debian packaging

debian/changelog

+suexec-sandbox (0.1-1) unstable; urgency=medium
+
+  * Initial release
+
+ -- A/I <debian@autistici.org>  Fri, 05 Jan 2018 00:06:40 +0100

debian/compat

+9

debian/control

+Source: suexec-sandbox
+Priority: optional
+Maintainer: A/I <debian@autistici.org>
+Build-Depends: debhelper (>= 9), autotools-dev, libseccomp-dev, libcap-dev
+Standards-Version: 3.9.8
+
+Package: suexec-sandbox
+Architecture: any
+Depends: ${shlibs:Depends}, ${misc:Depends}
+Description: Alternative suexec wrapper with sandbox capabilities

debian/rules

+#!/usr/bin/make -f
+#export DH_VERBOSE = 1
+
+%:
+	dh $@ --with autotools_dev

debian/source/format

+1.0