feat(v2): reduceLazy -> purryFromLazy, +takeLast, lazy zip, built-in flat, and more...

[eranhirsch]

Following re-reading the codebase before releasing v2, I went over a few more things I wanted to change:

• take and drop shouldn't use reduceLazy.
• drop can optimize the trivial lazy case
• flat uses the built-in flat.
• zipWith was funky, now less funky, and lazy.
• lazy zip
• optimize lazy first.
• Add takeLast
• Don't use copy-and-splice where slice makes sense (takeLast, dropLast, splitAt).
• don't use internal versions where a simple JS check is enough (isEmpty)
• Update migration docs for mapToObj
• bump ts minimum version.
• Remove reduceLazy. It was reimplementing parts of pipe's logic; instead, now, we rely on the way pipe handles lazy and build the rest of the APIs (dataFirst, dataLast) from it.

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[TkDodo]

🎉 This PR is included in version 2.0.0-beta.28 🎉

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[TkDodo]

🎉 This PR is included in version 2.0.0 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

Your semantic-release bot 📦🚀