Attempt to add RomFS dumping

src/memory_mapped_file.cpp

@@ -0,0 +1,37 @@
+#include "memory_mapped_file.hpp"
+
+MemoryMappedFile::MemoryMappedFile() : opened(false), filePath(""), pointer(nullptr) {}
+MemoryMappedFile::MemoryMappedFile(const std::filesystem::path& path) { open(path); }
+MemoryMappedFile::~MemoryMappedFile() { close(); }
+
+// TODO: This should probably also return the error one way or another eventually
+bool MemoryMappedFile::open(const std::filesystem::path& path) {
+	std::error_code error;
+	map = mio::make_mmap_sink(path.string(), 0, mio::map_entire_file, error);
+
+	if (error) {
+		opened = false;
+		return false;
+	}
+
+	filePath = path;
+	pointer = (u8*)map.data();
+	opened = true;
+	return true;
+}
+
+void MemoryMappedFile::close() {
+	if (opened) {
+		opened = false;
+		pointer = nullptr; // Set the pointer to nullptr to avoid errors related to lingering pointers
+
+		map.unmap();
+	}
+}
+
+std::error_code MemoryMappedFile::flush() {
+	std::error_code ret;
+	map.sync(ret);
+
+	return ret;
+}