Integration with preset-env - compile target option

Prior art:
> https://github.com/babel/babili/pull/387#issuecomment-274878437

Some optimizations which involve creating new functions or replacing or adding new functions or variables could be simplified to use the newer JS syntax (arrow functions, object methods, shorthand properties, default params, etc...). But we need an option to specify the target language version.

With `babel-preset-env` data it is possible to specify the target browsers, nodejs versions and use a particular feature - say `arrow-functions`, or `spread-operator` based on the computed values.