Disable Apt Recommends.

This disables apt's default behaviour of installing packages in the
Recommends field of other packages. While this can be useful, it
causes a lot of unnecessary software to be installed and may cause
explicit dependencies to be missed in some circumstances.

Change-Id: I10f4519290e6b3dafda3365c0c5dcc42ad17c090

elements/base/pre-install.d/00-disable-apt-recommends

@@ -0,0 +1,9 @@
+#!/bin/sh
+# Prevent apt from installing recommended packages
+
+dd of=/etc/apt/apt.conf.d/95disable-recommends << _EOF_
+APT::Install-Recommends "0";
+Apt::Install-Suggests "0";
+_EOF_
+
+