Combine Dependencies; Other Improvements

-Removed CPU intensive python based telnet server option
-Removed Micropython
-Renamed AT Telnet Daemon socat-at bridge
-Moved TTL related files not part of the www/cgi-bin directory to /simplefirewall
-Improved Simplefirewall menu, added ability to change TTL
-Combined uninstall and install functions for simpleadmin and dependencies into single functions

socat-at-bridge/smd7_systemd_units/socat-smd7-from-ttyIN.service

@@ -0,0 +1,14 @@
+[Unit]
+Description=Read from /dev/ttyIN and write to smd7
+BindsTo=socat-smd7.service
+After=socat-smd7.service
+
+[Service]
+ExecStart=/bin/bash -c "/bin/cat /dev/ttyIN > /dev/smd7"
+ExecStartPost=/bin/sleep 2s
+StandardInput=tty-force
+Restart=always
+RestartSec=1s
+
+[Install]
+WantedBy=multi-user.target