add gpl and lgpl text.

add README

writepin.c

@@ -1,3 +1,19 @@
+/*UVOS*/
+
+/* This file is part of UsbLedController.
+ *
+ * TelemetrySystem is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License (LGPL) version 3 as published by
+ * the Free Software Foundation.
+ *
+ * TelemetrySystem 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 TelemetrySystem.  If not, see <http://www.gnu.org/licenses/>.
+*/
 #include "writepin.h"
 
 void writePin(volatile unsigned char * const port, const unsigned char pin, const bool state)