Add PHP Extension for GmSSL

View http://gmssl.org/docs/php-api.html for more info.

php/ext/openssl/tests/bug71475.phpt

@@ -0,0 +1,16 @@
+--TEST--
+Bug #71475: openssl_seal() uninitialized memory usage
+--SKIPIF--
+<?php 
+if (!extension_loaded("openssl")) die("skip openssl not loaded");
+?>
+--FILE--
+<?php
+$_ = str_repeat("A", 512);
+openssl_seal($_, $_, $_, array_fill(0,64,0));
+?>
+DONE
+--EXPECTF--
+
+Warning: openssl_seal(): not a public key (1th member of pubkeys) in %s%ebug71475.php on line %d
+DONE