[code] Navigation in the console history.

The user can copy previous commands or results, into the clipboard or in
the console prompt.

Change-Id: I280fff2d4937f4d17ab6c8907d6e5c359a322372

apps/code/console_edit_cell.h

@@ -23,6 +23,7 @@ public:
 
   // Edit cell
   void setEditing(bool isEditing);
+  void setText(const char * text);
 
 private:
   char m_textBuffer[TextField::maxBufferSize()];