New Feature: Music / Sound Effects for Hearing Accessibility

[krs9851]

We need four open sounds in a .wav format. These sounds can be any length or style, and should be placed in the assets folder of the HearingUnityProject.

These sounds will be used to give users a way to test that they have set up the closed captions and volume control code correctly. The sounds will be used as examples for "critical sound effect", "ambient sound effect", "critical music", and "ambient music". Both critical and ambient music will be played on a loop after a button press, while the sound effects will be played once per button press.