LivingSetAttackTargetEvent is fired when an Entity sets a target to attack.
 This event is fired whenever an Entity sets a target to attack in
 
EntityLiving#setAttackTarget(EntityLivingBase) and
 
EntityLivingBase#setRevengeTarget(EntityLivingBase).
 
 This event is fired via the 
ForgeHooks#onLivingSetAttackTarget(EntityLivingBase, EntityLivingBase).
 
 
target contains the newly targeted Entity.
 
 This event is not 
Cancelable.
 
 This event does not have a result. 
HasResult
 
 This event is fired on the 
MinecraftForge.EVENT_BUS.