Add configuration for vSat

Add sems install and config
Add FS profiles for Vsat incoming calls via sems + related gateway

modules/rhizo_base/files/systemd/sems.service

@@ -0,0 +1,15 @@
+[Unit]
+Description=SEMS Proxy
+Requires=sysinit.target system.slice tinc.service
+After=network.target
+
+[Service]
+Type=simple
+WorkingDirectory=/etc/sems/
+ExecStart=/usr/sbin/sems -P /var/run/sems/sems.pid -u sems -g sems -f /etc/sems/sems.conf -E
+TimeoutStopSec=5
+Restart=always
+RestartSec=60
+
+[Install]
+WantedBy=multi-user.target