Added ability to toggle UTC times for passes #20

app/src/main/res/xml/preference.xml

@@ -45,6 +45,10 @@
             android:selectAllOnFocus="true"
             android:singleLine="true"
             android:title="@string/pref_refresh_rate_title" />
+        <SwitchPreference
+            android:defaultValue="false"
+            android:key="@string/pref_time_utc_key"
+            android:title="@string/pref_time_utc_title" />
         <SwitchPreference
             android:defaultValue="true"
             android:key="@string/pref_compass_key"