tones. This passes voice immunity and other key tests, but it bounces a bit
when transitions like 2400 -> 2400+2600 -> 2600 occur. Transitions between
tone off and tone on are clean.

change implicit construction of FSHost - now occurs after QApplication - for some reason Windows QT didnt like this.

allow uuid_break to interrupt one or all in a delimited string of files the same as several individual files

and move to switch_utils. To allow use by other modules.