Add missing props to AudioPlayer

[benwiley4000]

A number of config options should be available to the user:

Read once, at mount time:

• defaultVolume (double between 0 and 1; default 1)
• defaultMuted (boolean; default false)
• defaultLoop (boolean; default false)
• defaultPlaybackRate (number; default 1)
• startingTime (number; default 0)
• startingTrackIndex (number; default 0)

Updated whenever received:

• crossOrigin (enum['anonymous', 'use-credentials']; no default)