Let LatLng objects be directly converted to a string

Author: Jordan Hall

src/Objects/LatLong.php

@@ -60,4 +60,14 @@ public function getPoint()
     {
         return new Point($this->lat, $this->long);
     }
+
+    /**
+     * Convert LatLong to 'latitude,longitude' string format.
+     *
+     * @return string
+     */
+    public function __toString()
+    {
+        return $this->lat.','.$this->long;
+    }
 }

src/Objects/SimpleGoogleMaps.php

@@ -170,14 +170,6 @@ public function reverseGeocode(LatLong $latLong)
      */
     public function directions($from, $to, $travelMode = TravelMode::DRIVING)
     {
-        if (is_object($from) && get_class($from) === LatLong::class) {
-            $from = $from->lat.','.$from->long;
-        }
-
-        if (is_object($to) && get_class($to) === LatLong::class) {
-            $to = $to->lat.','.$to->long;
-        }
-
         $queryUrl = $this->authObject->applyToUrl(
             $this->baseUrl.'directions/json?origin='.urlencode($from).
                 '&destination='.urlencode($to).'&mode='.$travelMode