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/eeprom.h

@@ -0,0 +1,33 @@
+/**
+ * @brief This module contains the API for internal AVR non-volatile data
+ * @author Steve Karg <skarg@users.sourceforge.net>
+ * @date 2007
+ * @copyright SPDX-License-Identifier: MIT
+ */
+#ifndef EEPROM_H
+#define EEPROM_H
+
+#include <stdbool.h>
+#include <stdint.h>
+
+#ifndef EEPROM_BYTES_MAX
+#define EEPROM_BYTES_MAX (1 * 1024)
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
+int eeprom_bytes_read(
+    uint16_t ee_address, /* EEPROM starting memory address */
+    uint8_t *buffer, /* data to store */
+    int nbytes); /* number of bytes of data to read */
+int eeprom_bytes_write(
+    uint16_t ee_address, /* EEPROM starting memory address */
+    const uint8_t *buffer, /* data to send */
+    int nbytes); /* number of bytes of data */
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+#endif