Conflict with some macros

[Xrysnow]

My environment has macro UNICODE and DEBUG defiened and they conflict with some names in the project. I think it's better to rename them to avoid this.

[NanoMichael]

Is there just DEBUG macro is conflict? If you can provide more macros that conflict I can rename them in one PR.

[Xrysnow]

UNICODE is also defined on windows when using unicode charset.

Anyway, all-upper names without prefix or postfix are easy to meet conflict. I think you can change their name style

[PikachuHy]

DEBUG is a macro in MSVC.
Please rename it.
To compile the code in MSVC, I hack it.
see a734d9c

[PikachuHy]

UNICODE is also a macro in MSVC.

[hsandt]

Coming from https://github.com/Xrysnow/LuaSTG-x (@Xrysnow 's project which uses cLaTeXMath) and also encountered build issue because of DEBUG:

1>...LuaSTG-x_release_20210528\frameworks\external\cLaTeXMath\src\src\core\formula.cpp(194,14): error C2589: '=': illegal token on right side of '::'
1>...LuaSTG-x_release_20210528\frameworks\external\cLaTeXMath\src\src\core\formula.cpp(194,17): error C2082: redefinition of formal parameter 'b'

I renamed Box::DEBUG to Box::enableDebug in atom.h, box.cpp and formula.cpp to make it work.

(btw it would probably be easier to maintain if the Box was entirely defined in its own file rather than split across files, unless there's a reason for keeping the declaration in atom.h)

@Xrysnow how did you actually build your project? Did you find a workaround that doesn't require changing source files?