新增了PQDIF补招线程，导入了新的lib库

LFtid1056/pqdif/include/str_flat.h

@@ -0,0 +1,38 @@
+#include <stdio.h>
+
+class CPQDIF_S_FlatFile : public CPQDIF_StreamIO
+    {
+    public:
+	    CPQDIF_S_FlatFile();
+        virtual ~CPQDIF_S_FlatFile();
+
+    // Attributes
+    public:
+
+    // Operations
+    public:
+        bool Open
+		    ( 
+		    const	char *	fname,
+				    bool	readOnly
+		    );
+        bool New( const char * fname );
+        bool Connect( FILE * pf ) { m_pf = pf; return true; }
+        FILE * GetFile( void ) { return m_pf; }
+
+    //  Overridables
+    public:
+        virtual bool SeekPos( int pos );
+        virtual bool GetPos( int& pos );
+        virtual bool SeekEnd( void );
+
+        virtual BYTE * ReadBlock( long size, int& actualSize );
+        virtual bool WriteBlock( int &sizeActual );
+
+        virtual void Flush( void );
+
+    // Implementation
+    protected:
+        FILE *  m_pf;
+    };
+