restructure build to separate the 3 main components into 3 subdirectories

libi2pd for core libs

libi2pd_client for i2pd client libs

daemon for i2pd daemon libs

daemon/UPnP.h

@@ -0,0 +1,79 @@
+#ifndef __UPNP_H__
+#define __UPNP_H__
+
+#ifdef USE_UPNP
+#include <string>
+#include <thread>
+#include <condition_variable>
+#include <mutex>
+#include <memory>
+
+#include <miniupnpc/miniwget.h>
+#include <miniupnpc/miniupnpc.h>
+#include <miniupnpc/upnpcommands.h>
+#include <miniupnpc/upnperrors.h>
+
+#include <boost/asio.hpp>
+
+namespace i2p
+{
+namespace transport
+{
+	class UPnP
+	{
+	public:
+
+		UPnP ();
+		~UPnP ();
+        void Close ();
+
+        void Start ();
+        void Stop ();
+
+	private:
+
+		void Discover ();
+		void PortMapping ();
+		void TryPortMapping (std::shared_ptr<i2p::data::RouterInfo::Address> address);
+		void CloseMapping ();
+		void CloseMapping (std::shared_ptr<i2p::data::RouterInfo::Address> address);
+
+		void Run ();
+		std::string GetProto (std::shared_ptr<i2p::data::RouterInfo::Address> address);
+
+	private:
+	
+		bool m_IsRunning;
+        std::unique_ptr<std::thread> m_Thread;
+		std::condition_variable m_Started;	
+		std::mutex m_StartedMutex;	
+		boost::asio::io_service m_Service;
+		boost::asio::deadline_timer m_Timer;	
+        struct UPNPUrls m_upnpUrls;
+        struct IGDdatas m_upnpData;
+
+        // For miniupnpc
+        char * m_MulticastIf = 0;
+        char * m_Minissdpdpath = 0;
+        struct UPNPDev * m_Devlist = 0;
+        char m_NetworkAddr[64];
+        char m_externalIPAddress[40];
+	};
+}
+}
+
+#else  // USE_UPNP
+namespace i2p {
+namespace transport {
+  /* class stub */
+  class UPnP {
+  public:
+    UPnP () {};
+    ~UPnP () {};
+    void Start () { LogPrint(eLogWarning, "UPnP: this module was disabled at compile-time"); }
+    void Stop () {};
+  };
+}
+}
+#endif // USE_UPNP
+#endif // __UPNP_H__