Add metadata!

src/compress.hpp

@@ -0,0 +1,11 @@
+#include <zlib.h>
+#include <string>
+#include <cstdint>
+
+namespace simple_object_storage {
+
+std::string decompress_gzip(const std::string& file_path);
+
+uint64_t get_hash_from_tgz(const std::string& file_path);
+
+} // namespace simple_object_storage