Babel variant out of date

[rijnhard]

the babel variant still uses a number of properties that have been renamed like entry instead of input.

Also this could be of importance: regarding the transform-runtime plugin vs external-helpers plugins for babel.

[saintplay]

Please update the babel variant

[Shyam-Chen]

I make a new one.

https://github.com/Vanilla-IceCream/Library-Boilerplate

[rijnhard]

From 7.4 it is again out of date, since corejs@3 changes things somewhat