Separate NAZARA_API into multiple defines (one per module)

To fix inter-module dependency


Former-commit-id: 64704f020e0af22e529d38527323ba977187d4d0

include/Nazara/Graphics/Drawable.hpp

@@ -8,8 +8,9 @@
 #define NAZARA_DRAWABLE_HPP
 
 #include <Nazara/Prerequesites.hpp>
+#include <Nazara/Graphics/Config.hpp>
 
-class NAZARA_API NzDrawable
+class NAZARA_GRAPHICS_API NzDrawable
 {
 	public:
 		NzDrawable() = default;