Add pack to emojipacks.

[rduplain]

Thank you for this collection and for helpfully pointing emojipacks in the README of this project. I created a .yaml file for emojipacks to pick up this project, to add to the packs/ directory over in the emojipacks repository.

Once added, this will allow command-line upload with:

emojipacks -y https://raw.githubusercontent.com/lambtron/emojipacks/master/packs/anythingcodes-techies.yaml

This will also allow users of emojipacks' batch script to pick up your emojis automatically.

I'll link the relevant pull request here so that you can comment or make/suggest revisions.