Improvements for in-game comic book reader

• Ability to ZOOM IN and ZOOM OUT with mouse wheel or Y and X buttons on controller
• Ability to switch between pages with arrow keys
• Dots at the bottom that show current page are now clickable so you can skip ahead

Known issues

• Controller help text at the bottom is missing - I actually haven't added it.
• Scrolling up and down with arrow keys or controller dpad is very slow - hard to fix with some of the game's UI limitations