Move PRO_VERSION to config.h (#2695)

* 减少一个extern

* bump version

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Co-authored-by: salix5 <salix5566@gmail.com>

gframe/config.h

@@ -80,7 +80,7 @@ inline FILE* mywfopen(const wchar_t* filename, const char* mode) {
 
 #include <irrlicht.h>
 
-extern const unsigned short PRO_VERSION;
+constexpr uint16_t PRO_VERSION = 0x1362;
 extern unsigned int enable_log;
 extern bool exit_on_return;
 extern bool open_file;

gframe/game.cpp

@@ -12,8 +12,6 @@
 #include "single_mode.h"
 #include <thread>
 
-const unsigned short PRO_VERSION = 0x1362;
-
 namespace ygo {
 
 Game* mainGame;