去除打印，抄表路线支持所有园区，支持部分选择框清除内容

pages/workBenchNew/components/installMeter/index.wxml

@@ -85,24 +85,32 @@
     placeholder="请选择卡绑定（选填）"
     text="{{cardName}}"
     bind:search="onBindCard"
+    allowClear="{{true}}"
+    bind:clear="clearCard"
 />
 <searchSelectWrapper 
     label="互感器A" 
     placeholder="请选择互感器绑定"
     text="{{collectionAName}}"
     bind:search="onBindCollectionA"
+    allowClear="{{true}}"
+    bind:clear="clearCollectionA"
 />
 <searchSelectWrapper 
     label="互感器B" 
     placeholder="请选择互感器绑定"
     text="{{collectionBName}}"
     bind:search="onBindCollectionB"
+    allowClear="{{true}}"
+    bind:clear="clearCollectionB"
 />
 <searchSelectWrapper 
     label="互感器C" 
     placeholder="请选择互感器绑定"
     text="{{collectionCName}}"
     bind:search="onBindCollectionC"
+    allowClear="{{true}}"
+    bind:clear="clearCollectionC"
 />
 <searchSelectWrapper 
         label="商户"
@@ -174,6 +182,7 @@
     park="{{park}}"
     bindconfirm="onConfirm"
     bindcancel="onCancel"
+    placeholder="{{placeholder}}"
     wx:if="{{show}}"
 />