Add support for "-geometry"

Author: Pierstoval

Command.php

@@ -404,6 +404,19 @@ public function crop($geometry): self
         return $this;
     }
 
+    /**
+     * @param string|Geometry $geometry
+     *
+     * @see http://imagemagick.org/script/command-line-options.php#geometry
+     */
+    public function geometry($geometry): self
+    {
+        $this->command[] = '-geometry';
+        $this->command[] = '"'.$this->ref->geometry($geometry).'"';
+
+        return $this;
+    }
+
     /**
      * @param string|Geometry $geometry
      *