[Yunq] Create libyunq and move parsing code to it.

lib/yunq/serialize.h

@@ -0,0 +1,13 @@
+#pragma once
+
+#include <glacier/buffer/byte_buffer.h>
+#include <glacier/status/status.h>
+
+namespace yunq {
+
+[[nodiscard]] glcr::Status CheckHeader(const glcr::ByteBuffer& buffer);
+
+void WriteHeader(glcr::ByteBuffer& bytes, uint64_t offset, uint32_t core_size,
+                 uint32_t extension_size);
+
+}  // namespace yunq