add static ip config for wifi device

networkDevices/IPConfiguration.h

@@ -0,0 +1,19 @@
+#pragma once
+
+#include <Preferences.h>
+
+class IPConfiguration
+{
+public:
+    explicit IPConfiguration(Preferences* preferences, const bool& firstStart);
+
+    bool dhcpEnabled() const;
+    String ipAddress() const;
+    String subnet() const;
+    String defaultGateway() const;
+    String dnsServer() const;
+
+private:
+    Preferences* _preferences = nullptr;
+};
+