Add Sensirion SHT4X sensors (#3792)

* add Sensirion SHT4X sensors

* Update platformio.ini

Fix lib version

* Delete src/mesh/generated/meshtastic/telemetry.pb.h

* Revert "Delete src/mesh/generated/meshtastic/telemetry.pb.h"

This reverts commit 8e5e6a9f6ff4e31ed32775741c03a855e663a5de.

* remove modification on generated file

* Update ScanI2CTwoWire.cpp

Fix copy/paste issue

---------

Co-authored-by: Thomas Göttgens <tgoettgens@gmail.com>

src/modules/Telemetry/Sensor/SHT4XSensor.h

@@ -0,0 +1,23 @@
+#include "configuration.h"
+
+#if !MESHTASTIC_EXCLUDE_ENVIRONMENTAL_SENSOR
+
+#include "../mesh/generated/meshtastic/telemetry.pb.h"
+#include "TelemetrySensor.h"
+#include <SensirionI2cSht4x.h>
+
+class SHT4XSensor : public TelemetrySensor
+{
+  private:
+    SensirionI2cSht4x sht4x;
+
+  protected:
+    virtual void setup() override;
+
+  public:
+    SHT4XSensor();
+    virtual int32_t runOnce() override;
+    virtual bool getMetrics(meshtastic_Telemetry *measurement) override;
+};
+
+#endif