Added configuration handling

include/Configuration.h

@@ -0,0 +1,22 @@
+#pragma once
+
+#include <Arduino.h>
+
+#define CONFIG_FILENAME "/config.bin"
+#define CONFIG_VERSION 0x00010000 // 0.1.0
+
+struct CONFIG_T {
+    uint32_t Cfg_Version;
+    uint Cfg_SaveCount;
+};
+
+class ConfigurationClass {
+public:
+    void init();
+    bool read();
+    bool write();
+    void migrate();
+    CONFIG_T& get();
+};
+
+extern ConfigurationClass Configuration;