Move files to this submodule

files/etc/apt/apt.conf.d/20auto-upgrades

@@ -0,0 +1,2 @@
+APT::Periodic::Update-Package-Lists "1";
+APT::Periodic::Unattended-Upgrade "1";

files/etc/ssh/sshd_config

@@ -0,0 +1,18 @@
+Port 22
+HostKey /etc/ssh/ssh_host_rsa_key
+HostKey /etc/ssh/ssh_host_ecdsa_key
+HostKey /etc/ssh/ssh_host_ed25519_key
+SyslogFacility AUTH
+PermitRootLogin without-password
+MaxAuthTries 4
+PubkeyAuthentication yes
+AuthorizedKeysFile	.ssh/authorized_keys
+IgnoreRhosts yes
+PasswordAuthentication no
+ChallengeResponseAuthentication no
+UsePAM yes
+X11Forwarding no
+PrintMotd no
+AcceptEnv LANG LC_*
+Subsystem       sftp    /usr/lib/openssh/sftp-server
+ClientAliveInterval 120