Validate settings files

[philippitts]

Problem

Loading the wrong settings file will cause the GUI to crash. For example, if you load a EMG settings file as a hardware settings file, the GUI will crash.

Expected

The GUI should not crash and instead should prompt the user to select a valid settings file.

Operating System and Version

Windows 10

GUI Version

5.2.2

Are you running the downloaded app or from Processing/VSCode?

Downloaded app

Type of OpenBCI Board

Cyton