Dialogues : Automatically show image fullscreen when node advances, if requested

[Demigiant]

Query QuestNode.ImageAutoOpen: if TRUE images should auto-show fullscreen

CHANGE:

• don't open immediately but after we click on the node to advance, but only if the player hasn't opened it already
• ACTION button shouldn't disappear and should instead close the zoomed image and A) advance to next node if image was auto-opened, or B) close the image if the image was opened manually