Add cleanup_temporary_files script to base.

nix/configuration/roles/base/files/cleanup_temporary_files.bash

@@ -0,0 +1,4 @@
+#!/usr/bin/env bash
+#
+# Delete temporary files on entire disk
+find / -type f '(' -name '*.orig' -or -name '*~' -or -name '*.core' ')' -delete -print 2>/dev/null