Add custom quests to travel to cantha/elona/tyria when reaching main city on a char

[3vcloud]

One of the issues with the storyline in the game is that its no obvious when you reach the main port for 1 campaign, how to get to another one easily.

If a character reaches the point in the game where they can travel to another campaign, automatically add it as a primary quest e.g. "Travel to Tyria" - the quest marker will be whoever the player has to talk to to activate the quest according to their campaign