add everything to manage reputations

db/migrate/20210430213202_add_wow_reputation_self_join.rb

@@ -0,0 +1,5 @@
+class AddWowReputationSelfJoin < ActiveRecord::Migration[6.1]
+  def change
+    add_reference :wow_reputations, :meta_wow_reputation, foreign_key: { to_table: :wow_reputations }
+  end
+end