[Javascript] Add foalts

[waghanza]

https://github.com/the-benchmarker/website/issues/38

cc @francelwebdev

[marifcelik]

it has to be foal ts

[francelwebdev]

foalts https://foalts.org

[waghanza]

any PR is ❤️

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This project compare performance based on 3 routes :

• GET /, SHOULD return a successful status code and an empty 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

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Regards,

[waghanza]

cc @LoicPoullain