code: public static void initTEAPPS (@Nonnull final ValidationExecutorSetRegistry aRegistry)
    {
      ValueEnforcer.notNull (aRegistry, "Registry");
  
      final boolean bNotDeprecated = false;
  
      // No Schematrons here
      aRegistry.registerValidationExecutorSet (ValidationExecutorSet.create (VID_TEAPPS_272,
                                                                             "TEAPPSXML " + VID_TEAPPS_272.getVersion (),
                                                                             bNotDeprecated,
                                                                             ValidationExecutorXSD.create (new ClassPathResource ("/schemas/TEAPPSXMLv272_schema_INVOICES.xsd"))));
      aRegistry.registerValidationExecutorSet (ValidationExecutorSet.create (VID_TEAPPS_30,
                                                                             "TEAPPSXML " + VID_TEAPPS_30.getVersion (),
                                                                             bNotDeprecated,
                                                                             ValidationExecutorXSD.create (new ClassPathResource ("/schemas/teappsxmlv30_schema_invoices_0.xsd"))));
    }
docs: Register all standard TEAPPS validation execution sets to the provided
  registry.
  
  @param aRegistry
  The registry to add the artefacts. May not be <code>null</code>.