SPCOMM for MFC(Serial Port Class)

Ported from Delphi version supports the MFC class ,file only two:
Spcomm.h
Spcomm.cpp

SPCOMM Delphi famous serial software, the use of multi-threaded message method to write. Online examples of many.

This version's SPCOMM based on the following features
1. Increase support COM10 serial
2. Increase IsOpen () function returns true is already open