Step one of Linux Sensor support (#6673)

* First addition of __has_include for sensor support

* Add __has_include blocks for sensors

* Put BMP and BME back in the right sensors

* Make TelemetrySensor::setup() a pure virtual finction

* Split environmental_base to environmental_extra, to compile the working sensor libs for Native

* Remove hard-coded checks for ARCH_PORTDUINO

* Un-clobber bmx160

* Move BusIO to environmental_extra due to Armv7 compile error

* Move to forked BusIO for the moment

* Enable HAS_SENSOR for Portduino

* Move back to Adafruit BusIO after patch

src/modules/Telemetry/Sensor/nullSensor.cpp

@@ -0,0 +1,23 @@
+#include "configuration.h"
+
+#if !MESHTASTIC_EXCLUDE_ENVIRONMENTAL_SENSOR
+
+#include "../mesh/generated/meshtastic/telemetry.pb.h"
+#include "TelemetrySensor.h"
+#include "nullSensor.h"
+#include <typeinfo>
+
+NullSensor::NullSensor() : TelemetrySensor(meshtastic_TelemetrySensorType_SENSOR_UNSET, "nullSensor") {}
+
+int32_t NullSensor::runOnce()
+{
+    return 0;
+}
+
+void NullSensor::setup() {}
+
+bool NullSensor::getMetrics(meshtastic_Telemetry *measurement)
+{
+    return false;
+}
+#endif