Important Update:

- DataTreeCore:
  - Add GetLen() method to get length of (text) value
- FileCore:
  - Minor fix: rename MaxLen -> Len

FileCore.h

@@ -68,7 +68,7 @@ public:
     virtual bool SetFilePersistence( TFileHandle * FileHandle, bool Persistent, int PersistTimeout );
 
     // Data Input
-    virtual int Input( const char * ChannelName, const char * Data, int MaxLen = -1 );
+    virtual int Input( const char * ChannelName, const char * Data, int Len = -1 );
 
     // Processing data
     virtual bool Process();