Meta-fields for InvoiceTemplate, structured Customer address (#5519)

tests/Invoice/Renderer/DebugRendererTest.php

@@ -96,6 +96,7 @@ class DebugRendererTest extends TestCase
             'invoice.language',
             'invoice.tax_nc',
             'invoice.tax_plain',
+            'invoice.tax_rows',
             'invoice.total_time',
             'invoice.duration_decimal',
             'invoice.first',
@@ -137,12 +138,19 @@ class DebugRendererTest extends TestCase
             'query.end_year',
             'customer.id',
             'customer.address',
+            'customer.address_line1',
+            'customer.address_line2',
+            'customer.address_line3',
+            'customer.buyer_reference',
+            'customer.city',
+            'customer.postcode',
             'customer.name',
             'customer.contact',
             'customer.company',
             'customer.vat',
             'customer.vat_id',
             'customer.country',
+            'customer.country_name',
             'customer.number',
             'customer.homepage',
             'customer.comment',