added convert to gaus function

src/lib.rs

@@ -168,6 +168,13 @@ pub struct MagneticMessurement {
     pub z: f32,
 }
 
+impl MagneticMessurement {
+    /// Convert the µT from the measurement to Gaus. It's just x0.01.
+    pub fn convert_micro_tesla_to_gaus(tesla: f32) -> f32 {
+        tesla * 0.01
+    }
+}
+
 /// At what rate to output data
 pub enum DataRate {
     Unset,