StyleStar-v0.1.0

This is the second public alpha build of StyleStar created in Unity. The first alpha release is located here: https://drive.google.com/file/d/1Hug156vOXB4xSy-soALjUD_ThBhq-otW/view

We've added the following since the first released Unity build:

• Support on OSX (10.14 for now, not tested on 10.15 or below 10.14) and Ubuntu
• New Language select dialog (supports English, French, Japanese, and Spanish)
• Quality of life changes
  --> Song previews
  --> Scrolling animations
• Bug fixes