Added change shape option. Faster game matching pace.

Added option to change game piece shape in settings->gameplay (can only be accessed at the home screen). 

 Also when the initial matches occurs, it used to make the game piece kind of pop up to show it has been matched, but now that has been removed, so the pace can be played a little faster now. It was only there for testing purposes.

Issues:

• Game still doesn't run well on my test rig (2011 laptop) even without the background stuff, but it is playable-ish. Been playing around with addressables to see what parts I can improve. 
• Notified game pieces feel glitchy when moving around but haven't been able to replicate unless on older devices.

For the most part, this was just a test project that I decided to make seem more like a "full" game. This might be the last thing I do on it.