add BMP085 (and BMP180) sensor (temperature and air pressure)

src/modules/Telemetry/Sensor/BMP085Sensor.h

@@ -0,0 +1,17 @@
+#include "../mesh/generated/meshtastic/telemetry.pb.h"
+#include "TelemetrySensor.h"
+#include <Adafruit_BMP085.h>
+
+class BMP085Sensor : public TelemetrySensor
+{
+  private:
+    Adafruit_BMP085 bmp085;
+
+  protected:
+    virtual void setup() override;
+
+  public:
+    BMP085Sensor();
+    virtual int32_t runOnce() override;
+    virtual bool getMetrics(meshtastic_Telemetry *measurement) override;
+};