feat(index): 添加单次消费选项和支付功能

新增单次消费档位选择弹窗及支付功能
移除未使用的组件和配置文件

pages/goodsDetails/kefuBox/kefuBox.wxml

@@ -1,37 +0,0 @@
-<view>
-    <view class="keufubox">
-        <view class="kebox">
-            <view class="mykefu ">
-                <view class="le">
-                    <image src="http://q990.img.aiyichuan.com/urm_huodong/20190416/1555414945804.jpg"></image>
-                    <view class="box">
-                        <view class="title">霸王餐福利</view>
-                        <view class="desc">加客服进「声色福利群」</view>
-                    </view>
-                </view>
-                <view class="btn">点我添加</view>
-            </view>
-        </view>
-    </view>
-    <view class="modal-dialog" wx:if="{{showDialog}}">
-        <view class="modal">
-            <view class="infopop-wrap">
-                <view class="infopop-content">
-                    <view class="info-buy_notice">
-                        <view class="top">
-                            <view class="_top"></view>
-                            <view class="title">购买须知</view>
-                        </view>
-                        <view style="max-height: 280px; overflow: auto;">
-                            <view class="txt">
-                                <view class="txt_p">此券属平台与商家补贴，一经售出无法退款，请确认后再下单。</view>
-                            </view>
-                        </view>
-                        <button class="btn">我知道了</button>
-                    </view>
-                </view>
-                <button class="infopop-close">×</button>
-            </view>
-        </view>
-    </view>
-</view>