Add basic project heirarchy and config

engine/include/nova/core/api.hpp

@@ -0,0 +1,29 @@
+/**
+ * Copyright (c) 2025, Jayden Grubb <contact@jaydengrubb.com>
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#pragma once
+
+// clang-format off
+
+#if !defined(NOVA_API)
+	#if defined(NOVA_PLATFORM_WINDOWS)
+		#if defined(NOVA_EXPORT_SYMBOLS)
+			#define NOVA_API __declspec(dllexport)
+		#else
+			#define NOVA_API __declspec(dllimport)
+		#endif
+	#elif defined(NOVA_PLATFORM_LINUX) || defined(NOVA_PLATFORM_MACOS)
+		#if defined(NOVA_EXPORT_SYMBOLS)
+			#define NOVA_API __attribute__((visibility("default")))
+		#else
+			#define NOVA_API
+		#endif
+	#else
+		#define NOVA_API
+	#endif
+#endif
+
+// clang-format on