Add PHP Extension for GmSSL

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

php/ext/openssl/tests/check_default_conf_path.phpt

@@ -0,0 +1,24 @@
+--TEST--
+Check for default OpenSSL config path on Windows
+--SKIPIF--
+<?php
+if (substr(PHP_OS, 0, 3) != 'WIN') {
+    die('skip windows only test');
+}
+?>
+--FILE--
+<?php
+
+ob_start();
+phpinfo();
+$info = ob_get_contents();
+ob_end_clean();
+
+preg_match(",Openssl default config .* (.*),", $info, $m);
+
+if (isset($m[1])) {
+	var_dump(str_replace('/', '\\', strtolower($m[1])));
+}
+?>
+--EXPECT--
+string(28) "c:\usr\local\ssl\openssl.cnf"