add stubs, routes for add_annotation action

app/controllers/crawlers/courses_crawler_controller.rb

@@ -82,4 +82,7 @@ class Crawlers::CoursesCrawlerController < Crawlers::TissCrawlerController
     redirect_back(fallback_location: search)
   end
 
+  def add_annotation
+  end
+
 end

app/controllers/crawlers/projects_crawler_controller.rb

@@ -46,4 +46,7 @@ class Crawlers::ProjectsCrawlerController < Crawlers::TissCrawlerController
     end
     redirect_back(fallback_location: search)
   end
+
+  def add_annotation
+  end
 end

app/controllers/crawlers/theses_crawler_controller.rb

@@ -46,4 +46,7 @@ class Crawlers::ThesesCrawlerController < Crawlers::TissCrawlerController
     end
     redirect_back(fallback_location: search)
   end
+
+  def add_annotation
+  end
 end

app/controllers/crawlers/tiss_crawler_controller.rb

@@ -34,4 +34,7 @@ class Crawlers::TissCrawlerController < ApplicationController
   def add_to_fav
   end
 
+  def add_annotation
+  end
+
 end