add extension to solo to get version and RNG

fido2/extensions/solo.h

@@ -0,0 +1,27 @@
+/*
+ * Copyright (C) 2018 SoloKeys, Inc. <https://solokeys.com/>
+ *
+ * This file is part of Solo.
+ *
+ * Solo is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Solo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Solo.  If not, see <https://www.gnu.org/licenses/>
+ *
+ * This code is available under licenses for commercial use.
+ * Please contact SoloKeys for more information.
+ */
+#ifndef SOLO_H_
+#define SOLO_H_
+
+int16_t bridge_u2f_to_solo(uint8_t * _chal, uint8_t * _appid, uint8_t klen, uint8_t * keyh);
+
+#endif