DynamoDB backups of deleted tables excluded

[ryansb]

First, thanks for adding DDB backups to 0.6.1.

Commit 0925415... / issue #14 added DDB backups as sub-resources to ddb/table. DynamoDB backups can exist of now-deleted tables that still need to be cleaned up.

To gather those, I think there needs to be a separate resource type ddb/backup added instead of backups being a sub-resource listed on existing tables. Another option would be to make a fake ddb/table resource with a status of DELETED and put those backups as sub-resources of.

[jcarter3]

Ah, makes sense. I think moving ddb/backup to a separate resource type makes the most sense. It'd add a relation back to a potentially nonexistent table, but that should be fine? That is currently how RDS backups are handled (relationship goes to a non-existent database). I'll get that updated.

[jcarter3]

This should be fixed in the latest version (v0.6.2). Let me know if it's still not correct

[ryansb]

Yeah that works perfectly! Having a semi-empty relationship when the DDB table is gone but backups still exist makes sense, since they really are orphaned resources.