Added quickfilter plugin. Only made for in default menu style

Made a plugin that adds a checkbox select menu using `__in` filters to the left side of the page.

![Preview](https://lh4.googleusercontent.com/K-_EnOVslGNVGTJgaeEwnPGeVvIqz_74kDRyE550ENHelLO3NpdBF9jbD3uVIm6IMyOd__tNL8C-xN8yvgauiVoyb1QrgCnP4aVWQRT4p6lUf9WdIAIqCmUJ4lLrKK2f9Q)