Add hugo.Deps

[bep]

There are situations where it would be useful to have the Hugo Module dependency information available in the templates (mostly, for JS libraries built from /assets, to know: What version of this library is currently running?).

So I propose we add hugo.Deps that lists the dependencies with some basic info:

• Path (e.g. github.com/bep/mylib)
• Version (e.g. v1.0.0)
• Hash (source hash)

And then a lookup method so you can do $mylib := hugo.Deps.ByPath "foo"

[regisphilibert]

Do we need a lookup method? Can't where do the job?

[github-actions]

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