Make pandera hooks pip-installable

[noklam]

Description

Why was this PR created?

Development notes

What have you changed, and how has this been tested?

Checklist

• [ ] Read the contributing guidelines
• [ ] Open this PR as a 'Draft Pull Request' if it is work-in-progress
• [ ] Update the documentation to reflect the code changes
• [ ] Add a description of this change and add your name to the list of supporting contributions in the CHANGELOG.md file. Please respect Keep a Changelog guidelines.
• [ ] Add tests to cover your changes

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[Galileo-Galilei]

Hi, should we really create an empty hook ? We will add it soon whatsoever. Are you just checking discoverability here?

[noklam]

Hi, should we really create an empty hook ? We will add it soon whatsoever. Are you just checking discoverability here?

Indeed, I was working on this but then distract to create this issue. Feel free to ignore any Draft PR unless I tag you.

[Galileo-Galilei]

Can we close this one?

[noklam]

Closed as already implemented