feat: add qxip/iox to stdlib contribs

[lmangani]

The qxip/iox contrib wraps iox-flightsql queries into a familiar from selector for Flux scripts.

Usage Example

import "contrib/qxip/iox"
iox.from(
     bucket: "test",
     host: "eu-central-1-1.aws.cloud2.influxdata.com:443",
     token: "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX",
     limit: "10",
     table: "logs",
     start: -100d,
 )

Complete feature documentation provided through flux docs.

Checklist

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Dear Reviewer(s) 👋, you are responsible (among others) for ensuring the completeness and quality of the above before approval.

[lmangani]

Apologies for the false PRs! The builders still point to this repo and open PRs automatically.