Add cleanup script

Add numbering order to shell scripts

99-cleanup.sh

@@ -0,0 +1,11 @@
+#!/bin/bash
+
+# Remove packages not necessary for release
+apt-get -y purge git openssh-server
+apt-get -y --purge autoremove
+
+# Clean package cache
+apt-get -y clean
+
+# Remove SSH settings
+rm -rf /root/.ssh/