Add pragma.h header for various long pragma definitions

e.g. NOVA_BEGIN/END_ALLOW_ANONYMOUS_TYPES

engine/include/nova/pragma.h

@@ -0,0 +1,44 @@
+/**
+ * Copyright (c) 2025, Jayden Grubb <contact@jaydengrubb.com>
+ * 
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#pragma once
+
+// clang-format off
+
+#ifdef NOVA_COMPILER_GCC
+	#define NOVA_COMPILER_DIAGNOSTIC_POP									\
+		_Pragma("GCC diagnostic pop")
+#elif NOVA_COMPILER_CLANG
+	#define NOVA_COMPILER_DIAGNOSTIC_POP									\
+		_Pragma("clang diagnostic pop")
+#elif NOVA_COMPILER_MSVC
+	#define NOVA_COMPILER_DIAGNOSTIC_POP									\
+		__pragma(warning(pop))
+#else
+	#define NOVA_COMPILER_DIAGNOSTIC_POP
+#endif
+
+#ifdef NOVA_COMPILER_GCC
+	#define NOVA_BEGIN_ALLOW_ANONYMOUS_TYPES								\
+		_Pragma("GCC diagnostic push")										\
+		_Pragma("GCC diagnostic ignored \"-Wpedantic\"")
+#elif NOVA_COMPILER_CLANG
+	#define NOVA_BEGIN_ALLOW_ANONYMOUS_TYPES								\
+		_Pragma("clang diagnostic push")									\
+		_Pragma("clang diagnostic ignored \"-Wgnu-anonymous-struct\"")		\
+		_Pragma("clang diagnostic ignored \"-Wnested-anon-types\"")
+#elif NOVA_COMPILER_MSVC
+	#define NOVA_BEGIN_ALLOW_ANONYMOUS_TYPES								\
+		__pragma(warning(push))												\
+		__pragma(warning(disable : 4201))
+#else
+	#define NOVA_BEGIN_ALLOW_ANONYMOUS_TYPES
+#endif
+
+#define NOVA_END_ALLOW_ANONYMOUS_TYPES										\
+	NOVA_COMPILER_DIAGNOSTIC_POP
+
+// clang-format on