basic serial communication for Unity.
developed in combination with SimpleSerialVS to enable serial communication with Unity's VisualScripting.
work in progress!
only tested under macOS 13.2 (22D49, M1 Chip) and Unity 2021.3.
makes heavy use of Antanas Veivery's EnhancedSerialPort as replacement for .Net's Serialport.DataReceived-callback, which is not implemented in Mono.