add install, systemd unit

Makefile

@@ -12,3 +12,8 @@ tome_ws: $(wildcard *.go)
 clean: 
 	rm -f tome_ws
 
+install: tome_ws
+	install -d $(DESTDIR)$(PREFIX)/bin
+	install -m 755 tome_ws $(DESTDIR)$(PREFIX)/bin
+	install -d /usr/lib/systemd/system/
+	install -m 744 init/tome_ws.service

init/guildgate.service

@@ -0,0 +1,15 @@
+[Unit]
+Description=Tomecraft Websocket server
+After=network.target
+StartLimitIntervalSec=0
+
+[Service]
+Type=simple
+Restart=always
+RestartSec=3
+User=root
+ExecStart=/usr/local/bin/tome_ws
+
+
+[Install]
+WantedBy=multi-user.target