added prints in setup

stempayload/Payload_BME280_MPU6050_XS_Extended/payload_extension.cpp

@@ -18,6 +18,8 @@ float magRawAbs = 0;
 // put your setup code here
 void payload_setup() {
 
+  Serial.println("Starting Si1145 sensor!");
+
   if (! uv.begin()) {
     Serial.println("Si1145 sensor fault");
     uvPresent = 0;
@@ -25,6 +27,8 @@ void payload_setup() {
     uvPresent = 1;
   }
 
+  Serial.println("Starting LIS3MDL sensor!");
+
   if (! lis3mdl.begin_I2C()) {
     Serial.println("LIS3MDL sensor fault");
     magPresent = 0;