* @param l List<PluginInterface>
* @return PluginInterface or null
*/
public static PluginInterface getRightPlugin(String extension , List<PluginInterface> l)
{
PluginInterface pRes = null;
for(PluginInterface p : l)
{
String[] ext = p.getExtension();
for(String e : ext)
if(extension.equals(e))