[Coco] Becker Port patch and win32 build for MESS 0.152s

[Richard Goedeken]

I got my new laptop all set up and running this weekend and got the becker
port functionality in MESS working under windows.  Here is a link to the patch:

http://www.fascinationsoftware.com/media/mess0152s-becker-port.diff

And here's a link to a Win32 build of MESS 0.152s which includes this new feature:

http://www.fascinationsoftware.com/media/mess0152s-becker-port-win32.zip

There are 2 new configuration options in the System Configuration menu: one to
enable/disable the port, and another to select the DriveWire port number.  You
can choose any port between 65500 and 65509.

Let the testing begin!

Richard