fix: fix Windows build.dart

thermion_dart/native/include/ThermionWin32.h

@@ -25,7 +25,6 @@
 #pragma comment(lib, "dracodec.lib")
 #pragma comment(lib, "ibl.lib")
 #pragma comment(lib, "ktxreader.lib")
-#pragma comment(lib, "png.lib")
 #pragma comment(lib, "z.lib")
 #pragma comment(lib, "stb.lib")
 #pragma comment(lib, "uberzlib.lib")

thermion_dart/native/include/c_api/TCamera.h

@@ -1,5 +1,9 @@
 #pragma once
 
+#ifdef _WIN32
+#include "ThermionWin32.h"
+#endif
+
 #ifdef __cplusplus
 namespace thermion {
 extern "C"