(ctor) GainSkillObjectiveInstance( GainSkillObjective objective, MLQuestInstance instance )
GainSkillObjective Objective( get; set; )
bool Handles( SkillName skill )
virtual bool IsCompleted()
virtual void OnQuestAccepted()
virtual void OnQuestCancelled()
virtual void OnQuestCompleted()
virtual void WriteToGump( Gump g, ref int y )