Add type formatting helpers

Created the <maxbase/format.hh> header that contains various helper
functions for formatting values into human readable forms. Currently only
binary to human readable size conversion is implemented.

maxutils/maxbase/include/maxbase/format.hh

@@ -0,0 +1,32 @@
+/*
+ * Copyright (c) 2018 MariaDB Corporation Ab
+ *
+ * Use of this software is governed by the Business Source License included
+ * in the LICENSE.TXT file and at www.mariadb.com/bsl11.
+ *
+ * Change Date: 2022-01-01
+ *
+ * On the date above, in accordance with the Business Source License, use
+ * of this software will be governed by version 2 or later of the General
+ * Public License.
+ */
+
+#pragma once
+
+#include <maxbase/ccdefs.hh>
+
+#include <cstdint>
+#include <string>
+
+namespace maxbase
+{
+
+/**
+ * Convert a number into the IEC human readable representation
+ *
+ * @param size Value to convert
+ *
+ * @return Value as a human readable size e.g. 5.01MiB
+ */
+std::string to_binary_size(int64_t size);
+}