Added Umbral Creation to the game. Scripts converted to meta and new achievements.

Some changes to achievements_lib.lua

New file: data/npc/scripts/Eruaran.lua

Added Umbral Creation almost 100% like Tibia RL. (The chances for creating/improvement/transforming are not the same. Should be updated)
Umbral Creation was created following the info found at http://tibia.wikia.com/wiki/Umbral_Creation
The weapons and items required are the same as Tibia RL.
NPC Transcripts are not 100% like Tibia RL. Also there are some keywords that doesn't have response. I didn't added them because i couldn't find the real transcripts.

To be added: Umbral-Achievements
I would have changed it to something like this, and assign Userdata to a variable if it's used more than once.
```Lua
function onUse(cid, item, fromPosition, itemEx, toPosition)
	if itemEx.itemid ~= 1 or itemEx.type ~= THING_TYPE_MONSTER then
		return true
	end
	
	local player, monster = Player(cid), Monster(itemEx.uid)
	if player:getStorageValue(946) < 4 and player:getStorageValue(945) == 1 and string.lower(monster:getName()) == 'damaged crystal golem' then
		player:setStorageValue(946, player:getStorageValue(946) + 1)
		player:sendTextMessage(MESSAGE_EVENT_ADVANCE, 'The golem has been returned to the gnomish workshop.')
		monster:remove()
		toPosition:sendMagicEffect(CONST_ME_POFF)
	end
	return true
end
```