Support invoice professional type

Author: darwintantuco

lib/myob-api.rb

@@ -21,6 +21,7 @@
 require 'myob/api/models/invoice'
 require 'myob/api/models/invoice_item'
 require 'myob/api/models/invoice_service'
+require 'myob/api/models/invoice_professional'
 
 require 'myob/api/models/payroll_category'
 require 'myob/api/models/wage'

lib/myob/api/models/invoice_professional.rb

@@ -0,0 +1,11 @@
+module Myob
+  module Api
+    module Model
+      class InvoiceService < Base
+        def model_route
+          'Sale/Invoice/Professional'
+        end
+      end
+    end
+  end
+end