CDPATH support

[trajano]

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What would you like to see changed/added?

we already have paths for PATH but I was wondering if we can have it for other PATH like structures like CDPATH (though that's basically the only other example I know and it's limited to BASH and ZSH maybe FISH)

What I do for now

  - value: |
      setopt auto_cd
      cdpath=($HOME $HOME/p)
    if: and (eq .Shell "zsh") (eq .OS "darwin")