Adds user status to users list API (#38948).

git-svn-id: https://svn.redmine.org/redmine/trunk@22637 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/views/users/index.api.rsb

       api.passwd_changed_on user.passwd_changed_on
       api.avatar_url gravatar_url(user.mail, {rating: nil, size: nil, default: Setting.gravatar_default}) if Setting.gravatar_enabled?
       api.twofa_scheme user.twofa_scheme
+      api.status user.status
 
       render_api_custom_values user.visible_custom_field_values, api
     end

test/integration/api_test/users_test.rb

     json['users'].zip(users) do |user_json, user|
       assert_equal user.id, user_json['id']
       assert_equal user.updated_on.iso8601, user_json['updated_on']
+      assert_equal user.status, user_json['status']
 
       # No one has changed password.
       assert_nil user_json['passwd_changed_on']