move automatic invoices to plugin

changes on deposit calculation

tiny changes on group order invoice pdf

plugins/automatic_invoices/db/migrate/20211208142719_create_group_order_invoices.rb

@@ -0,0 +1,13 @@
+class CreateGroupOrderInvoices < ActiveRecord::Migration[5.2]
+  def change
+    create_table :group_order_invoices do |t|
+      t.integer :group_order_id
+      t.bigint :invoice_number, unique: true, limit: 8
+      t.date :invoice_date
+      t.string :payment_method
+
+      t.timestamps
+    end
+    add_index :group_order_invoices, :group_order_id, unique: true
+  end
+end

plugins/automatic_invoices/db/migrate/20230822120005_add_customer_number_to_group.rb

@@ -0,0 +1,5 @@
+class AddCustomerNumberToGroup < ActiveRecord::Migration[7.0]
+  def change
+    add_column :groups, :customer_number, :string, unique: true
+  end
+end