Add a new name resolution method: structuredformat doc

[seal90]

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Description

Add structuredformat document

Issue reference

#4966

[sicoyle]

corresponding PR dapr/components-contrib#4085

[msfussell]

@seal90 - This docs PR will need to target the v1.17 docs repo, if this is included in that release.

[seal90]

@seal90 - This docs PR will need to target the v1.17 docs repo, if this is included in that release.

I've changed the base branch from v1.16 to v1.17.