#6693 Check for description in JSON output

[uilianries]

Changelog: Feature: Add the description field to the output of the conan info command.
Docs: conan-io/docs#1627

Add the field "description" as valid for the command Conan info.

closes #6693

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[memsharded]

Looks good, just a small question.

[jgsogo]

The original PR will modify also the output of the conan info --help command, it should add the description field to the -n/--only argument. We need to modify here in the docs the "Reference >> Commands >> Create >> Info" output

[jgsogo]

Sorry, my previous review was for the docs, not the PR itself 🤦‍♂