(ctor) GainSkillObjective()
      (ctor) GainSkillObjective( SkillName skill, int thresholdFixed )
      (ctor) GainSkillObjective( SkillName skill, int thresholdFixed, bool useReal, bool accelerate )
      bool Accelerate( get; set; )
      SkillName Skill( get; set; )
      int ThresholdFixed( get; set; )
      bool UseReal( get; set; )
      virtual bool CanOffer( IQuestGiver quester, PlayerMobile pm, bool message )
      virtual BaseObjectiveInstance CreateInstance( MLQuestInstance instance )
      bool GetFlag( GainSkillObjectiveFlags flag )
      void SetFlag( GainSkillObjectiveFlags flag, bool value )
      virtual void WriteToGump( Gump g, ref int y )