[FEATURE REQUEST] Publish alarms compliant with the GPAD API

[RobertLRead]

In order to make the VentMon spirometer a more effective monitor/tester, it should be able to automatically detect certain dangerous conditions, such as:

1. Low relative humidity (and therefore, uncomfortable for a human being or animal to breathe), and
2. A hose disconnect (which may manifest as either unchanging pressure or constant high pressure or high flow)

This is particularly valuable and synergistic with the Krake wireless Alarm Anunciator.

This could be accomplishes via the network connectivity builtin to the ESP32 which is in the VentMon. An example network system is MQTT.

The network could a Local Area Network of the Internet.