Add Eliud's eggs exercise

[kahgoh]

Summary

This adds the Eliud's eggs exercise for 48in24.

Checklist

• If docs where changed run ./bin/configlet generate to ensure all documents are properly generated.
• CI is green

[github-actions]

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[verdammelt]

Given the introduction & instructions I thought this exercise would involve taking a string which represents binary... but it just takes a number? I see from looking at the source (the problem-specifications repo) that this is just how it is.

Looks like a good addition to this track. Thank you for the submission