Add a new name resolution method: structuredformat doc

[seal90]

What content needs to be created or modified?

Desceibe how to use a new name resolution method: structuredformat

Describe the solution you'd like

Add a new name resolution method: structuredformat

Where should the new material be placed?

supported-name-resolution

The associated pull request from dapr/dapr, dapr/components-contrib, or other Dapr code repos

issue: https://github.com/dapr/components-contrib/issues/4084

PR: https://github.com/dapr/components-contrib/pull/4085

Additional context