Support radar sensor RCWL-9620 on i2c

src/modules/Telemetry/Sensor/RCWL9620Sensor.h

@@ -0,0 +1,17 @@
+#include "../mesh/generated/meshtastic/telemetry.pb.h"
+#include "TelemetrySensor.h"
+#include <Unit_Sonic.h>
+
+class RCWL9620Sensor : public TelemetrySensor
+{
+  private:
+    SONIC_I2C rcwl9620;
+
+  protected:
+    virtual void setup() override;
+
+  public:
+    RCWL9620Sensor();
+    virtual int32_t runOnce() override;
+    virtual bool getMetrics(meshtastic_Telemetry *measurement) override;
+};