add: project branch_slice

app/views/projects/branches_slice.json.jbuilder

@@ -0,0 +1,20 @@
+json.array! @branches_slice do |branch_slice|
+  json.branch_type branch_slice['branch_name']
+  json.list branch_slice['branches'].each do |branch|
+    json.name branch['name']
+    json.user_can_push branch['user_can_push']
+    json.user_can_merge branch['user_can_merge']
+    json.protected branch['protected']
+    json.http_url render_http_url(@project)
+    json.zip_url render_zip_url(@owner, @repository, branch['name'])
+    json.tar_url render_tar_url(@owner, @repository, branch['name'])
+    json.last_commit do
+      json.sha branch['commit']['id']
+      json.message branch['commit']['message']
+      json.timestamp render_unix_time(branch['commit']['timestamp'])
+      json.time_from_now time_from_now(branch['commit']['timestamp'])
+      json.author branch['commit']['author']
+      json.committer branch['commit']['committer']
+    end
+  end
+end

app/views/repositories/detail.json.jbuilder

@@ -72,6 +72,15 @@ json.branches do
   end
   json.total_count @result[:branch].size
 end
+json.branches_slice do 
+  json.list @result[:branch_slice].each do |branch_slice|
+    json.branch_type branch_slice["branch_name"]
+    json.list branch_slice["branches"].each do |branch|
+      json.name branch["name"]
+    end
+  end
+  json.total_count @result[:branch_slice].size
+end
 json.tags do
   json.list @result[:tag].each do |tag|
     json.name tag["name"]