Add example .env file

core/poller/.env.example

@@ -0,0 +1,12 @@
+UNIFI_ADDR="107.170.232.179"
+UNIFI_PORT="8443"
+UNIFI_USERNAME="username"
+UNIFI_PASSWORD="password"
+
+# Can be 1m15s for 1 minute 0 seconds, 15s for 15 seconds, etc.
+TICK_RATE="15s"
+
+INFLUXDB_ADDR="http://hostname:8086"
+INFLUXDB_DATABASE="unifi"
+INFLUXDB_USERNAME="unifi"
+INFLUXDB_PASSWORD="password"