## What this PR does
This patch narrows the scope of the Velero backup strategy controller to
simply template Velero Backups according to the application being backed
up and the template in the strategy. Creating storage locations is now
out of scope.
### Release note
```release-note
[backups] Implement templating for Velero backups and remove creation of
backup storage locations and volume snapshot locations.
```
Signed-off-by: Timofei Larkin <lllamnyp@gmail.com>
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