Add serialization for bios-settings-manager

Tested: Restarted the biosconfig-manager application and
        BaseBIOSTable and PendingAttributes were restored.

Signed-off-by: Tom Joseph <tomjoseph@in.ibm.com>
Change-Id: Iddbe69ed45a6895a324d236a14b6f21586315c62
diff --git a/include/manager_serialize.hpp b/include/manager_serialize.hpp
new file mode 100644
index 0000000..000314e
--- /dev/null
+++ b/include/manager_serialize.hpp
@@ -0,0 +1,28 @@
+#pragma once

+

+#include "manager.hpp"

+

+#include <filesystem>

+

+namespace bios_config

+{

+

+/** @brief Serialize and persist the bios manager object

+ *

+ *  @param[in] obj - bios manager object

+ *  @param[in] path - path to the file where the bios manager object

+ *                    is to be serialized

+ */

+void serialize(const Manager& obj, const fs::path& path);

+

+/** @brief Deserialize the persisted data and populate the bios manager object

+ *

+ *  @param[in] path - path to the persisted file

+ *  @param[in/out] entry - reference to the bios manager object which is the

+ *                         target of deserialization.

+ *

+ *  @return bool - true if the deserialization was successful, false otherwise.

+ */

+bool deserialize(const fs::path& path, Manager& entry);

+

+} // namespace bios_config
\ No newline at end of file