add feed to #product

include/feed_state.hrl

@@ -1,6 +1,6 @@
 -record(state, {
         owner = "feed_owner",
-        type :: user | group | system, 
+        type :: user | group | system | product,
         feed,
         direct,
         cached_feed,

include/products.hrl

@@ -20,6 +20,7 @@
         ext_name               :: binary(),  % ext
         vendor_id              :: integer(), % auto
         categories             :: list(integer()), % admin
+        feed,
         description_short      :: binary(),  % admin (based on ext)
         description_long       :: binary(),  % admin (based on ext)
         image_small_url        :: binary(),  % admin (based on ext)