feat(localization): add Dominican Spanish translation module

modules/translation_do/locale/override/es_DO.po

@@ -0,0 +1,16 @@
+# Dominican Spanish overrides for upstream Tryton modules.
+msgid ""
+msgstr ""
+"Project-Id-Version: Tryton 8.0\n"
+"Language: es_DO\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+"Plural-Forms: nplurals=2; plural=(n != 1);\n"
+
+# Example of a Dominican override owned by this extension module. The
+# ``party.`` suffix identifies the original module while keeping an empty
+# resource identifier, as required for field translations.
+msgctxt "field:party.address,postal_code:party."
+msgid "Postal Code"
+msgstr "Código postal"