examples: rgw: add boto3 extensions for GetUsage S3 API

This allows for boto3 & aws cli to use the GetUsageStats api to get usage by a
user

Signed-off-by: Abhishek Lekshmanan <abhishek@suse.com>

examples/boto3/service-2.sdk-extras.json

@@ -12,6 +12,17 @@
             "input":{"shape":"DeleteBucketNotificationConfigurationRequest"},
             "documentationUrl":"https://docs.ceph.com/docs/master/radosgw/s3/bucketops/#delete-notification",
             "documentation":"<p>Deletes the notification configuration from the bucket.</p>"
+        },
+        "GetUsageStats":{
+            "name":"GetUsageStats",
+            "http":{
+                "method":"GET",
+                "requestUri":"/?usage",
+                "responseCode":200
+            },
+            "output": {"shape": "GetUsageStatsOutput"},
+            "documentationUrl":"https://docs.ceph.com/docs/master/radosgw/s3/",
+            "documentation":"<p>Get usage stats for the user</p>"
         }
     },
     "shapes": {
@@ -139,6 +150,26 @@
             },
             "documentation":"<p>A container for object tags filtering rules.</p>"
         }
+        "GetUsageStatsOutput": {
+            "type": "structure",
+            "members": {
+                "Summary": {
+                    "shape":"UsageStatsSummary",
+                    "documentation": "<p/>"
+                }
+            }
+        },
+        "UsageStatsSummary": {
+            "type": "structure",
+            "members": {
+                "TotalBytes":{"shape":"TotalBytes"},
+                "TotalBytesRounded":{"shape":"TotalBytesRounded"},
+                "TotalEntries":{"shape":"TotalEntries"}
+            }
+        },
+        "TotalBytesRounded":{"type":"integer"},
+        "TotalBytes":{"type":"integer"},
+        "TotalEntries":{"type":"integer"}
     },
     "documentation":"<p/>"
 }