Cleanup and refactoring of the STM32w port

This is a general cleanup of things like code style issues and code structure of the STM32w port to make it more like the rest of Contiki is structured.

cpu/stm32w108/hal/micro/temperature-sensor.h

@@ -0,0 +1,27 @@
+/** @file temperature-sensor.h
+ * @brief Header for temperature sensor driver 
+ *
+ *
+ * <!--(C) COPYRIGHT 2010 STMicroelectronics. All rights reserved.        -->
+ */
+#ifndef _TEMP_SENSOR_H_
+#define _TEMP_SENSOR_H_
+
+/* Include --------------------------------------------------------------------*/
+#include "hal/micro/adc.h"
+/* Define --------------------------------------------------------------------*/
+
+/* Typedef -------------------------------------------------------------------*/
+
+/* Functions -----------------------------------------------------------------*/
+
+/** @brief Temperature Sensor Initialization function 
+*/
+void temperatureSensor_Init(void);
+
+/** @brief  Get temperature sensor value 
+*/
+uint32_t temperatureSensor_GetValue(void);
+
+#endif /* _TEMP_SENSOR_H_ */
+