Add Voicing to ComboBox

[zepumph]

As a simple test, it would be awesome to add voicing here. This comes from updating common code (see phetsims/sun#726).

We can use https://docs.google.com/document/d/1-BMIhvNV07MUaMk0-b205mvM3735EZvyKUl6ILUTGq4/edit#heading=h.92mxf0hs6osk

Tagging @Matthew-Moore240 that I may get to this, to help test ComboBox voicing pretty soon, but of course we can make tweaks afterwards to the strings.

[zepumph]

This has been implemented, and I also added a PreferencesConfiguration() object so that we can test this.

It is easiest to run the sim from master with &voicingInitiallyEnabled&preferencesStorage&printVoicingResponses&supportsVoicing=true

[zepumph]

This has been implemented, though tweaks are still being made to phetsims/sun#726. Once that issue is closed, @Matthew-Moore240 can take a listen here.

[zepumph]

We have had a design sign-off in common code. over to @Matthew-Moore240 to review.