Product Import cancan permissions and ui tab

app/models/spree/ability_decorator.rb

@@ -155,6 +155,8 @@ class AbilityDecorator
     can [:admin, :index, :read, :search], Spree::Taxon
     can [:admin, :index, :read, :create, :edit], Spree::Classification
 
+    can [:admin, :index, :import, :save], ProductImporter
+
     # Reports page
     can [:admin, :index, :customers, :orders_and_distributors, :group_buys, :bulk_coop, :payments, :orders_and_fulfillment, :products_and_inventory, :order_cycle_management, :packing], :report
   end

app/overrides/spree/admin/shared/_product_sub_menu/add_product_import_tab.html.haml.deface

@@ -0,0 +1,4 @@
+/ insert_bottom "[data-hook='admin_product_sub_tabs']"
+
+-# Commenting out for now, until product import is finished
+-# = tab :product_import, label: "Import", url: main_app.admin_product_import_path, match_path: '/product_import'