[Enhancement] show proc can not support storage_policy

[xiedeyantu]

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• I had searched in the issues and found no similar issues.

Description

show proc "/storage_policies"

we can get configrations of every storage_policy.

Solution

No response

Are you willing to submit PR?

• Yes I am willing to submit a PR!

Code of Conduct

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[xiedeyantu]

SHOW STORAGE POLICY;