data: added group filter search criteria

data/ui_panel_groups.json

+{
+  "children":[
+  {
+
+    "generate": "widget",
+    "type": "header",
+    "property_dict": {
+      "id": "search-header",
+      "theme": "slapos-black",
+      "add_content": 0,
+      "section_list":["last"],
+      "title": "Categories",
+      "title_i18n": "global_dict.categories"
+    },
+    "children":[{
+      "type": "a",
+      "direct": {
+        "href": "#",
+        "className": "ui-panel-close ui-icon-remove ui-btn ui-btn-icon-notext ui-shadow ui-corner-all"
+      },
+      "logic": {"text": "Close"}
+    }]
+  },
+  {
+    "portal_type_source": "Portal Category",
+    "portal_type_title": "category",
+    "portal_type_fields": "category_fieldlist",
+    "initial_query": {"query": "reference: 'product_group'", "include_docs": true, "select_list": ["title", "title_i18n"]},
+    "property_dict": {
+      "check": true
+    },
+    "scheme": [
+      {
+        "position": "center",
+        "field_list": [
+          {"field": "title"}
+        ]
+      }
+    ],
+    "children": [{
+      "generate":"widget",
+      "type": "listview",
+      "property_dict": {
+        "theme": "slapos-white",
+        "map_children": "listItem",
+        "dynamic": true
+      },
+      "children": []
+    }]
+  }
+  ]
+}
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