`clap_man` should respect the configured display order for args and subcommands

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Rust Version

rustc 1.57.0 (f1edd0429 2021-11-29)

Clap Version

v3.0.6

Minimal reproducible code

TBD

Steps to reproduce the bug with the above code

TBD

Actual Behaviour

Arguments come back in whatever order the App provides rather than what is configured

Expected Behaviour

Arguments show up in the configured order

Additional Context

Split out of #3174

Debug Output

No response