API GetCraftReagentItemLink

This command returns a required reagent (as an itemLink) for a specific craftable item from the currently visible tradeskill window.
 reagentLink = GetCraftReagentItemLink(index, n)
==Arguments==
:;index: - index of the requested craft recipe, where 1 is the top-most listed recipe.
:;n: - index of the Nth reagent for the recipe, where 1 is the first reagent.
==Returns==
:;reagentLink: - itemLink for the requested reagent. 
==Details==
* If you specify an invalid index, nil is returned.
* If there is no visible tradeskill window, nil is returned.
==Patch changes==