Fast Company’s Harry McCracken talked to some of the team behind Apple’s new Personal Voice accessibility feature about its development as well as some more fine details: When it came to enabling third-party apps to speak via Personal Voice, Apple put privacy measures in place similar to those it imposes for photos, location, and other bits of personal data in its care. Such apps can only hook into Personal Voice with the user’s permission, must be running in the foreground, and receive only enough access to read text in the voice, not to get at the data used to generate…