User Summary improvements

Added "Top Links" list
Added "Most Liked By" list

Added "Bookmark count" stat

UX: Use fa heart icon instead of "like" text in stats

Change the order of the user stats

app/serializers/user_summary_serializer.rb

@@ -8,9 +8,19 @@ class UserSummarySerializer < ApplicationSerializer
     has_one :topic, serializer: TopicSerializer
   end
 
+  class LinkSerializer < ApplicationSerializer
+    attributes :url, :title, :clicks, :domain
+  end
+
+  class MostLikedByUserSerializer < BasicUserSerializer
+    attributes :likes, :name
+  end
+
   has_many :topics, serializer: TopicSerializer
   has_many :replies, serializer: ReplySerializer, embed: :object
   has_many :badges, serializer: UserBadgeSerializer, embed: :object
+  has_many :links, serializer: LinkSerializer, embed: :object
+  has_many :most_liked_by_users, serializer: MostLikedByUserSerializer, embed: :object
 
   attributes :likes_given,
              :likes_received,
@@ -18,7 +28,8 @@ class UserSummarySerializer < ApplicationSerializer
              :days_visited,
              :topic_count,
              :post_count,
-             :time_read
+             :time_read,
+             :bookmark_count
 
   def include_badges?
     SiteSetting.enable_badges