tests/resource/aws_ses_configuration_set: Add sweeper (#13216)
tests/resource/aws_ses_configuration_set: Add sweeper (#13216)

Output from sweeper in AWS Commercial:

```
2020/05/11 15:12:01 [INFO] Deleting SES Configuration Set: event_config
2020/05/11 15:12:01 [INFO] Deleting SES Configuration Set: some-configuration-set-2981819045392895787
2020/05/11 15:12:02 [INFO] Deleting SES Configuration Set: some-configuration-set-4661762272036991094
2020/05/11 15:12:02 [INFO] Deleting SES Configuration Set: tf_acc_cfg_ses_event_dst_qjipi62k
2020/05/11 15:12:03 [INFO] Deleting SES Configuration Set: tf_acc_cfg_ses_event_dst_v28ltiav
2020/05/11 15:12:03 Sweeper Tests ran successfully:
	- aws_ses_configuration_set

2020/05/11 15:12:05 [INFO] Deleting SES Configuration Set: some-configuration-set-2459335473671996120
2020/05/11 15:12:05 Sweeper Tests ran successfully:
	- aws_ses_configuration_set
```

Output from sweeper in AWS GovCloud (US):

```
2020/05/11 15:12:11 Sweeper Tests ran successfully:
	- aws_ses_configuration_set
```
terraform-providers/terraform-provider-aws,terraform-providers/terraform-provider-aws,terraform-providers/terraform-provider-aws,kjmkznr/terraform-provider-aws,kjmkznr/terraform-provider-aws,terraform-providers/terraform-provider-aws,kjmkznr/terraform-provider-aws,kjmkznr/terraform-provider-aws