Added global high score board. Includes the one allowable external link to this page: https://hipp0.com/wheelofbingoscores.php

Optimized the two PNG image assets, saving 0.5MB. Optimized the font, saving 0.9MB. Total game size is now 2MB.

Centered preloader properly. Added "Game Mode" title above game mode buttons. (15 SPINS, 25 SPINS). Updated 350x263 screenshot.