ES7 features support & export-ns-from support

[0xMarkian]

Is CRA planning to support this proposal from stage 4?
https://github.com/tc39/proposal-export-ns-from

[petetnt]

ns-from support is at least pending on preset-env changes

#8522 (comment)

[petetnt]

Here's the issue tracking the preset-env change

babel/babel#11363

[0xMarkian]

Thanks @petetnt !