rename $JssorNavigator$ -> $JssorBulletNavigator$

$JssorNavigator$ -> $JssorBulletNavigator$
$JssorDirectionNavigator$ - >$JssorArrowNavigator$
$JssorNavigatorOptions - >$JssorBulletNavigatorOptions
$JssorDirectionNavigatorOptions -> $JssorArrorNavigatorOptions