Added list of posts of a specific user

Similar to the blog handler the blog user handler routes /blogs/users/{id}. Pagination is implemented as well

src/persistence/sql/cms_storage_sql_builder.e

@@ -36,6 +36,11 @@ feature -- Initialization
 			create u.make ("admin")
 			u.set_password ("istrator#")
 			u.set_email (a_setup.site_email)
+			a_storage.new_user (u)
+
+			create u.make ("daboesch")
+			u.set_password ("eiffel")
+			u.set_email ("daboesch@student.ethz.ch")
 			a_storage.new_user (u)
 
 				--| Node