[implemented] Get more data from ItemLinks

[Sephiroth018]

You can already get really a lot of information about an item you have in your bag (Itemtype, traits, sellprice, quality, ...) with the following and other functions:
GetItemType
GetItemTrait
GetItemInfo

I know a part of it is already available, but why not all of it? The tooltip already has it, so the information is definitely there.
And please give us a better possibility to get the enchantment (type as enumeration and strength as absolute value), the current one is not understandable (at least for me).