Important Update:

- BufferCore:
  - Added PeekCopy and PopCopy methods
- SelectableCore:
  - Add status checking of Handle on Read and Write
  - Reject input if Handle not open
- TimingCore:
  - Added method ClearStartTime

BufferCore.h

@@ -40,11 +40,13 @@ public:
     int Reset();
     int Set( const char * Data, int Len = -1 );
     int Peek( char ** Data, int PeekPos = 0, int MaxLen = -1 );
+    int PeekCopy( char ** Data, int PeekPos = 0, int MaxLen = -1 );
     int Clear( int ClearLen = -1 );
 
     // FiFo operations
     int Push( const char * Data, int Len = -1 );
     int Pop( char ** Data, int MaxLen = -1 );
+    int PopCopy( char ** Data, int MaxLen = -1 );
 
     // File operations
     int ReadFromFD( int Handle, int MaxRead = -1 );