Add PHP Extension for GmSSL

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

php/ext/openssl/tests/bug25614.phpt

@@ -0,0 +1,14 @@
+--TEST--
+openssl: get public key from generated private key
+--SKIPIF--
+<?php 
+if (!extension_loaded("openssl")) die("skip"); 
+if (!@openssl_pkey_new()) die("skip cannot create private key"); 
+?>
+--FILE--
+<?php 
+$priv = openssl_pkey_new();
+$pub = openssl_pkey_get_public($priv);
+?>
+--EXPECTF--
+Warning: openssl_pkey_get_public(): Don't know how to get public key from this private key %s