Extract plugs to another lib

[kelvinst]

Create a new lib triplex_plug and extract all plugs to this lib. This way we will make triplex leaner.

[mgiacomini]

I started working on this :). The repo is https://github.com/mgiacomini/triplex_plug

[kelvinst]

@mgiacomini can you ask @ljohann or @petersonfs to send your repo to ateliware's account? I guess that way it feels more "official". And also, please open a PR removing all the plugs from this repo.

[mgiacomini]

@kelvinst sure :)

[mgiacomini]

@kelvinst https://github.com/ateliware/triplex_plug
I will work on the docs now.

[kelvinst]

@mgiacomini looks nice so far, waiting for the docs. 😉