Synaptic A220 ACARS/CPDLC

This add-on introduces ACARS and CPDLC functionality to the Synaptic A220, supporting Hoppie Vatsim, SayIntentions.AI, and experimental BeyondATC networks. Features include free text messaging, ATIS, METAR/TAF, oceanic clearance, PDC, and interactive ATC message response buttons. Functions such as speed, flight level, direct routing, and position reports are available through the CPDLC system. Note that compatibility may be affected by future Synaptic A220 updates.