Refactor into a client/server model, to enable multiple clients to access the BMS data

bmspy-influxdb.service

@@ -0,0 +1,13 @@
+[Unit]
+Description=BMS tracking via InfluxDB
+Requires=bmspy-server.service
+
+[Service]
+Type=exec
+WorkingDirectory=/usr/local/bmspy
+ExecStart=poetry run bmspy-influxdb --url http://localhost/ --org 0987654321 --bucket bms --token XXXX
+RestartSec=5
+Restart=on-failure
+
+[Install]
+WantedBy=default.target