Default temp unit and weather provider based on locale

app/src/main/java/com/tommasoberlose/anotherwidget/utils/Extensions.kt

@@ -257,4 +257,11 @@ fun Intent.isDefaultSet(context: Context): Boolean {
     } catch (ex: java.lang.Exception) {
         false
     }
+}
+
+fun Locale.isMetric(): Boolean {
+    return when (country.toUpperCase(this)) {
+        "US", "LR", "MM", "GB" -> false
+        else -> true
+    }
 }