Skip JSON schemas enumeration

/redfish/v1/JsonSchemas/ and it's sub resources are JSON
documentation data which describes the implemented resouces.
The same can be found in https://redfish.dmtf.org/redfish/schema_index

Change-Id: I003de69a3f9186c32523cdc82893cef2b5ef171c
Signed-off-by: George Keishing <gkeishin@in.ibm.com>
diff --git a/lib/bmc_redfish_utils.py b/lib/bmc_redfish_utils.py
index ca4653b..cca8d3f 100644
--- a/lib/bmc_redfish_utils.py
+++ b/lib/bmc_redfish_utils.py
@@ -82,6 +82,10 @@
             return resource_dict
 
         for resource in url_list:
+            # JsonSchemas data are not required in enumeration.
+            # Example: '/redfish/v1/JsonSchemas/' and sub resources.
+            if 'JsonSchemas' in resource:
+                continue
             self._rest_response_ = self._redfish_.get(resource)
             if self._rest_response_.status != 200:
                 continue