update trio2o image filter

1. what is the problem?
    right now trio2o image filter can not suppport  tags or created ..

2. What is the solution to the problem?

   update image filter function

3. What the features to be implemented in the Trio2o to realize the solution?

   none

   Signed-off-by: zhangchi <zhangchi@szzt.com.cn>
   co-Authored-By: tangzhuo <ztang@hnu.edu.cn>er the commit message for your changes. Lines starting

Change-Id: Ie87c8eb3f0c4355d672175b2fc911da076683314

trio2o/nova_apigw/controllers/image.py

@@ -31,6 +31,10 @@ SUPPORTED_FILTERS = {
     'type': 'property-image_type',
     'minRam': 'min_ram',
     'minDisk': 'min_disk',
+    'created': 'created_at',
+    'updated': 'updated_at',
+    'visibility': 'visibility',
+    'tags':  'tags',
 }