First Commit of MQTT-SN Gateway

Add    new SensorNetwork XBee
Add    a sensor network type in a start message.
Update MQTTSNClient to avoid build warning.
Update WiringPi's functions to my original ones. 
BugFix check msgId before adding waitdTopicId table.
BugFix Process termination procedures
Update print curent time in millseconds.
update move currentDateTime() to linux directory.
Bugfix: blink blue lightiIndicator.
Bugfix: Register returns wrong id.
change a status of the client to Disconnected.
change client status procedure
Update README
BugFix: change Network Disconnect procedures.

Signed-off-by: tomoaki <tomoaki@tomy-tech.com>

MQTTSNGateway/src/MQTTSNGWDefines.h

@@ -0,0 +1,62 @@
+/**************************************************************************************
+ * Copyright (c) 2016, Tomoaki Yamaguchi
+ *
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * and Eclipse Distribution License v1.0 which accompany this distribution.
+ *
+ * The Eclipse Public License is available at
+ *    http://www.eclipse.org/legal/epl-v10.html
+ * and the Eclipse Distribution License is available at
+ *   http://www.eclipse.org/org/documents/edl-v10.php.
+ *
+ * Contributors:
+ *    Tomoaki Yamaguchi - initial API and implementation and/or initial documentation
+ **************************************************************************************/
+
+#ifndef MQTTSNGWDEFINES_H_
+#define MQTTSNGWDEFINES_H_
+
+namespace MQTTSNGW
+{
+
+/*=================================
+ *    Starting prompt
+ ==================================*/
+#define GATEWAY_VERSION  "(Ver 0.1.1)"
+
+/*=================================
+ *    Log controls
+ ==================================*/
+//#define DEBUG          // print out log for debug
+//#define RINGBUFFER     // print out Packets log into shared memory
+
+/*=================================
+ *    Parametrs
+ ==================================*/
+#define MQTTSNGW_MAX_PACKET_SIZE   (1024)  // Max Packet size
+#define SIZEOF_LOG_PACKET           (128)  // Length of the packet log in bytes
+
+#define MQTTSNGW_CONFIG_FILE      "/usr/local/etc/mqttsnGateway/config/param.conf"
+#define MQTTSNGW_CLIENT_LIST      "/usr/local/etc/mqttsnGateway/config/clientList.conf"
+#define MQTTSNGW_TLS_CA_DIR       "/etc/ssl/certs"
+
+/*=================================
+ *    Data Type
+ ==================================*/
+typedef unsigned char  uint8_t;
+typedef unsigned short uint16_t;
+typedef unsigned int   uint32_t;
+
+/*=================================
+ *    Macros
+ ==================================*/
+#ifdef  DEBUG
+#define DEBUGLOG(...) printf(__VA_ARGS__)
+#undef  RINGBUFFER
+#else
+#define DEBUGLOG(...)
+#endif
+
+}
+#endif /* MQTTSNGWDEFINES_H_ */