move cost_entry settings from the engine to this plugin

init.rb

@@ -6,6 +6,7 @@ $LOAD_PATH << File.expand_path("../lib/redmine_widgets", __FILE__)
 require 'simple_table'
 require 'entry_table'
 require 'cost_types'
+require 'settings'
 
 Redmine::Plugin.register :redmine_reporting do
   name 'Reporting Plugin'

lib/redmine_widgets/settings.rb

@@ -0,0 +1,19 @@
+class Widget::Settings < Widget::Base
+
+  @@settings_to_render.insert -2, :cost_types
+
+  def render_cost_types_settings
+    render_widget Widget::Settings::Fieldset, @subject, { :type => "units" } do
+      render_widget Widget::CostTypes,
+                    @cost_types,
+                    :selected_type_id => @selected_type_id
+    end
+  end
+
+  def render_with_options(options, &block)
+    @cost_types = options.delete(:cost_types)
+    @selected_type_id = options.delete(:selected_type_id)
+
+    super(options, &block)
+  end
+end