Allow ESM and tree shaking

[nfroidure]

Lambdas / functions size could be reduced if the build could use three shaking and if types requirement could be well cleaned up.

It would avoid the need to remove heavy unused libs by hand like here :
a5713fc

And to lazy load some imports :
f3ae3e2#diff-2b9953ab2999d5b91554d3a2d755863dR63

A good resource on doing this :
https://medium.com/@iamstan/tips-for-writing-es-modules-in-node-js-96ec688615a4

Also chase /dist/ imports to replace them by main imports since tree shaking wil avoid it to import the whole libs.