Feature: Save buttons in options menu

[NathanDavis-UW]

Each settings menu should have the option to either apply or save. Apply changes the options for the current instance, whereas save changes it permanently.

[NathanDavis-UW]

Saving in the test menu should set the current settings of test, whether custom or another non-basic test

[laelath]

Will implement a way to set the default font and test type