Integration with Quests

[Cervator]

As a modder I would want to be able to attach quests (tasks) to a book. If the book is in a players inventory it should be active and if it is removed it should become inactive. I would want to define the book and the quest requirements in the same prefab.

As a player I would want to be able to find books in the world and acquire quests while I have said book.

See https://github.com/Terasology/QuestExamples for an example of a simple quest bound to an entity placed in the world. Update that module to depend on Books and place a book that has a quest attached to it in a chest spawned near the player. Handle logic for when the book enters and exits the player's inventory (might be some similar code in BookcaseSystem)