Smart merging with wildcard import

It’ll be nice to remove redundant granular imports in such situation:

import a.b.ClassA
import a.b._

now it will be grouped into

import a.b.{ClassA, _}

but, in fact, ClassA is redundant here, and it could be simply

import a.b._

[danslapman]

@liancheng thank you, works like a charm 👍

[liancheng]

@danslapman, just published 0.4.3, please have a try 😃