Add Lapis (Lua)

[kalicki]

it would be very interesting : https://github.com/leafo/lapis

ping to @leafo

[waghanza]

Hi @leafo,

Would you mind to add (or consent that we add) lapis in here ?

This project compare performance based on 3 routes :

• GET /, SHOULD return a successful status code and an empt²y string
• GET /user/:id, SHOULD return a successful status code and the id
• POST /user, SHOULD return a successful status code and an empty string

Regards,