Add PHP Extension for GmSSL

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

php/ext/openssl/tests/openssl_random_pseudo_bytes_basic.phpt

@@ -0,0 +1,22 @@
+--TEST--
+openssl_random_pseudo_bytes() tests
+--SKIPIF--
+<?php if (!extension_loaded("openssl")) print "skip"; ?>
+--FILE--
+<?php
+for ($i = 0; $i < 10; $i++) {
+	var_dump(bin2hex(openssl_random_pseudo_bytes($i, $strong)));
+}
+
+?>
+--EXPECTF--
+string(0) ""
+string(2) "%s"
+string(4) "%s"
+string(6) "%s"
+string(8) "%s"
+string(10) "%s"
+string(12) "%s"
+string(14) "%s"
+string(16) "%s"
+string(18) "%s"