[Gpsbabel-code] Types conflict in an1.c

[Dmitriy G. <dmi...@gm...>]

Hello again!

I found type names conflict in |an1sym.h| and |an1.c|. There is a type 
defined |GUID|, which is one of favorite MS words. So there is a 
conflict between |GUID |defined in |winnt.h| and one in |an1.c|.
I renamed type |GUID |to |an1_GUID|.

Also there is a script |make-an1sym.pl,| which makes |an1sym.h|. I don't 
speak Perl, so I need someone's help to change |default_guids| 
generation routine, to make it unicode compatible:
|{{0xb610bc70,{0x377e, 0x11d6, 0xaeb3}, {0x00, 0x01, 0x02, 0x31, 0x5f, 
0xfd}}, "Hiker"}|
to
|{{0xb610bc70,{0x377e, 0x11d6, 0xaeb3}, {0x00, 0x01, 0x02, 0x31, 0x5f, 
0xfd}}, _T("Hiker")}|