Changed ATmega168 port to ATmega328 on Uno R3 with DFR0259 RS485 shield (#784)

* Changed ATmega168 example for ATmega328 on Arduino Uno R3 with DFR0259 RS485 shield. Added ADC interface from BDK port and mapped to some AV objects. Removed MS/TP MAC address DIP switch GPIO and moved MS/TP configuration to AV objects. Added AV units property. Added some Uno R3 Digital Inputs and outputs mapped to some BV. Added AVR EEPROM from BDK port and mapped some non-volatile data including MAC address and max manager and baud rate, device ID and names and description and location.

ports/atmega328/stack.h

@@ -0,0 +1,29 @@
+/**
+ * @brief The module handles the API for the CSTACK monitoring
+ * @author Steve Karg <skarg@users.sourceforge.net>
+ * @date 2009
+ * @copyright SPDX-License-Identifier: MIT
+ */
+#ifndef STACK_H
+#define STACK_H
+
+#include <stdbool.h>
+#include <stdint.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
+/* C stack checking */
+void stack_init(void);
+
+unsigned stack_size(void);
+
+uint8_t stack_byte(unsigned offset);
+
+unsigned stack_unused(void);
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+#endif