Creating attributes should be decoupled from products

[proggeramlug]

The attribute controller/routes should have their own identity.

So we should have routes like
attributes/create
attributes/update
attributes (list)

etc. that deal with the attributes independently of products

likewise when creating an attribute for a product it should link to the ID of attribute.
so
POST products/1/attributes should take arguments such as (attributeId,language, value)

[proggeramlug]

Man that is fast :D @calebkleveter