[Feature Request] Js.Conole.Warn, Js.Console.Error, etc

[ncthbrt]

console.log is not the only logging method. console.warn, console.error and a number of methods are available in the Console API

These methods are especially handy on the back end as it allows the infrastructure the application is running on to manage different types of logs in heterogeneous ways.

[chenglou]

warn is already there: https://bucklescript.github.io/bucklescript/api/Js.Console.html