重构系统附件字段逻辑

修改各模块附件功能

resources/views/attachment/upload.blade.php

@@ -0,0 +1,28 @@
+<link rel="stylesheet" type="text/css" href="{{$asset_url}}/vendor/webuploader/webuploader.css">
+<link rel="stylesheet" type="text/css" href="{{$asset_url}}/vendor/webuploader/demo.css">
+
+<div id="uploader" class="wu-example">
+    <div class="queueList">
+        <div id="dndArea" class="placeholder">
+            <div id="filePicker"></div>
+            <p>或将文件拖到这里，单次最多可选99个文件</p>
+        </div>
+    </div>
+    <div class="statusBar" style="display:none;">
+        <div class="progress">
+            <span class="text">0%</span>
+            <span class="percentage"></span>
+        </div><div class="info"></div>
+        <div class="btns">
+            <div id="filePicker2"></div><div class="uploadBtn">开始上传</div>
+        </div>
+    </div>
+</div>
+
+<script>
+var BASE_URL = '{{$asset_url}}/vendor/webuploader';
+var SERVER_URL = '{{$SERVER_URL}}';
+var UPLOADER_ID = '{{$key}}'.replace('.', '_');
+</script>
+<script type="text/javascript" src="{{$asset_url}}/vendor/webuploader/webuploader.nolog.min.js"></script>
+<script type="text/javascript" src="{{$asset_url}}/vendor/webuploader/demo.js"></script>