added blob type (progress)

include/matador/utils/types.hpp

@@ -0,0 +1,13 @@
+#ifndef QUERY_UTILS_TYPES_HPP
+#define QUERY_UTILS_TYPES_HPP
+
+#include <vector>
+
+namespace matador::utils {
+
+using byte = unsigned char;
+using blob = std::vector<byte>;
+
+}
+
+#endif //QUERY_UTILS_TYPES_HPP