Employer table broken up and new idcard module setup

app/models/id_card/plan_benefit.rb

@@ -1,3 +1,5 @@
-class IdCard::PlanBenefit < ApplicationRecord
-  belongs_to :id_card_plan
-end
+module IdCard
+  class PlanBenefit < ApplicationRecord
+    belongs_to :plan
+  end
+end