Crafting Stations

Introduction
Two crafting huts can be built, these buildings increase the crafting skill of the camp, and unlock three professions for the villagers. At least one is also needed for the Great Hall, so creating these should be high priority

Prerequisites

 * lvl2 Stockpile
 * 50 wood

Benefits

 * The first crafting hut unlocks the Butcher professions, the second the Tanner and Weavemaker professions
 * Allows building the Great Hall
 * Increases the camp's crafting skill