Add Entry and Entries types

[dimitropoulos]

closes #115

[sindresorhus]

These two types should be in separate files.

[sindresorhus]

Write about some real-world use-cases where it can be useful. (It can be hard sometimes for users to see where they would use something) - https://github.com/sindresorhus/type-fest/blob/master/.github/contributing.md

You mention some use-cases in the issue.

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Example code block with a realistic example.

The current examples illustrate what it does, but it's not a real-world example.

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If there has been any discussion somewhere about this type, include a link to it. For example, a discussion on the TypeScript issue tracker.

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[dimitropoulos]

ok @sindresorhus I think all the review feedback has been addressed and the build is passing.

[sindresorhus]

Can you fix the merge conflict?

[sindresorhus]

You need to include the type in index.d.ts

[dimitropoulos]

@sindresorhus just rebased

[sindresorhus]

You missed #130 (comment)

[dimitropoulos]

my apologies, added to index.d.ts in 33968e3

[sindresorhus]

Thanks :)