Stop creating inaccessible global constants "0" and "1"

This was a side effect of the macro that was used to declare constants
for the values of the stringified version of the constant name.

`get_defined_constants(true)['mosquitto']` can be used to show the old
constants (`["MOSQ_LOG_INFO"] => 1, ..., "0" => 0, "1" => 1]`)

mosquitto.c

@@ -1451,9 +1451,9 @@ PHP_MINIT_FUNCTION(mosquitto)
  REGISTER_MOSQUITTO_LONG_CONST("LOG_WARNING", MOSQ_LOG_WARNING);
  REGISTER_MOSQUITTO_LONG_CONST("LOG_ERR", MOSQ_LOG_ERR);
  REGISTER_MOSQUITTO_LONG_CONST("LOG_DEBUG", MOSQ_LOG_DEBUG);
- 
- REGISTER_MOSQUITTO_LONG_CONST("SSL_VERIFY_NONE", 0);
- REGISTER_MOSQUITTO_LONG_CONST("SSL_VERIFY_PEER", 1);
+
+ zend_declare_class_constant_long(mosquitto_ce_client, "SSL_VERIFY_NONE", sizeof("SSL_VERIFY_NONE")-1, 0 TSRMLS_CC);
+ zend_declare_class_constant_long(mosquitto_ce_client, "SSL_VERIFY_PEER", sizeof("SSL_VERIFY_PEER")-1, 1 TSRMLS_CC);
 
  mosquitto_lib_init();