add option component, revise html, css, .off()

Description:
1. drinkingBar.option = {}

<Model>
option.skipTheStep = false;
option.thisOrder = {}

<View>
option.view = {};
option.view.selector = $("#option");

<Controller>
option.controller

2. drinkingBar.html
Improve the structure --> for MVC architecture

3. .css
all the css style, started from id  --> avoid giving the same class name
ex:
.lastPage{...}  -->  #input .lastPage{...}

4. insert .off("tap") before .on("tap")  --> avoid .on("tap") binding
multiple event

Bug:
option.js:28

28 | dom.show();             // is not work
29 | $(dom.selector).show(); // is work