chg: User from root To vagrant

This commit modifies the instruactions so that
they use the vagrant user instead of root. Also sudo is now
requierd for a significant amount of the commands.

virtual-machines/ubuntu/root.sh

@@ -0,0 +1,20 @@
+#!/bin/bash
+
+# Enable root account login
+
+# If sudo with the default vagrant SSH user is acceptable, then we may not do
+# this and just update the documentation to use the vagrant user and sudo before
+# commands.
+
+# Set the root user password
+echo -e "vagrant\nvagrant" | passwd root
+
+# unlock the root user
+passwd -u root
+
+# Enable root SSH login
+sed -i 's/^#*PermitRootLogin.*/PermitRootLogin yes/' /etc/ssh/sshd_config
+
+systemctl restart sshd
+
+echo "root account setup script done"