Refactor Sensors to remove publish responsibility and instead return values. Add Screen class to output to OLED screen.

Screen.h

@@ -0,0 +1,21 @@
+#ifndef Screen_h
+#define Screen_h
+
+#include <Wire.h>
+#include <Adafruit_SSD1306.h>
+#include "Sensors.h"
+
+class Screen {
+	Adafruit_SSD1306 _screen=Adafruit_SSD1306(128, 64, &Wire, -1);
+	Sensors *_sensors;
+	int _sdaPin, _sclPin;
+
+	void writeTemperature();
+
+  public:
+	Screen(Sensors *sensors, int sdaPin, int sclPin);
+	void setup();
+	void update();
+};
+
+#endif