Basic Graphics Settings

[jeffcampbellmakesgames]

I'd like for the following graphics settings to be implemented in the SettingsUIScreen:

• Target FPS => This should be a dropdown or toggle that enables a player to select between 30, 60, and Uncapped for target FPS. A developer should be able to set the default in the inspector.
• Resolution => This should be a dropdown that enables a player to select from one of several available resolutions. Once selected, an Apply button should be enabled that when pressed sets the new resolution and launches a modal to confirm with the player that this looks good or should be reverted back to the previous resolution.