Refactor/mstp zero config state machine (#676)

* Changed MS/TP master node self destination checks to be located in receive FSM

* Changed MSTP zero configuration: modified comments for state transition names; modified next station increment; refactored the UUID rand() to not be required by common zero config implementation; added more unit tests.

* Added another context to MS/TP user data to allow additional user data

ports/xplained/rs485.c

@@ -210,6 +210,44 @@ uint32_t rs485_baud_rate(void)
     return Baud_Rate;
 }
 
+/**
+ * @brief Set the baud in kili-baud
+ * @param baud_k baud rate in approximate kilobaud
+*/
+bool rs485_kbaud_rate_set(uint8_t baud_k)
+{
+    uint32_t baud = 38400;
+
+    if (baud_k == 255) {
+        baud = 38400;
+    } else if (baud_k >= 115) {
+        baud = 115200;
+    } else if (baud_k >= 76) {
+        baud = 76800;
+    } else if (baud_k >= 57) {
+        baud = 57600;
+    } else if (baud_k >= 38) {
+        baud = 38400;
+    } else if (baud_k >= 19) {
+        baud = 19200;
+    } else if (baud_k >= 9) {
+        baud = 9600;
+    }
+
+    return rs485_baud_rate_set(baud);
+}
+
+/**
+* Converts baud in bps to kili-baud
+*
+* @param baud - baud rate in bps
+* @return: baud rate in approximate kilo-baud
+*/
+uint8_t rs485_kbaud_rate(void)
+{
+    return Baud_Rate/1000;
+}
+
 /**
  * Initialize the RS-485 baud rate
  *