fix: Make sure volume is never a string

fix: Make mocha exit

fix: Escape non-ascii characters as xml entities for Microsoft TTS

Remove Spotify highres for now

Support limit and offset in getQueue

Add equalizer info to state object

Introduce NightMode and SpeechEnhancement calls

Recognize subs connected to PLAYBAR
v1.4.0

Identify SUB connected correctly on stereo pairs

Limit valid ranges because people might accidently fry their SUB

v1.3.1