fix LinearRing on innerBoundaryIs for KML Adapter

[nono303]

Hi,
According to https://developers.google.com/kml/documentation/kmlreference?hl=fr#innerboundaryis here is a quick fix for kml adapter

diff --git "a/src/Adapter/KML.php" "b/src/Adapter/KML.php"
index 4b0f959..28b6e84 100644
--- "a/src/Adapter/KML.php"
+++ "b/src/Adapter/KML.php"
@@ -344,7 +344,7 @@ class KML implements GeoAdapter
                 . '</' . $this->nss . 'outerBoundaryIs>';
             foreach (array_slice($components, 1) as $comp) {
                 $str .= '<' . $this->nss . 'innerBoundaryIs>'
-                    . $this->linestringToKML($comp)
+                    . $this->linestringToKML($comp, 'LinearRing')
                     . '</' . $this->nss . 'innerBoundaryIs>';
             }
         }

[nono303]

fixed in my fork nono303@a40b805