Code generated by estatico newtype should be excluded

[gzoom13]

Issue can be reproduced in following repository: https://github.com/gzoom13/scoverage-newtype-issue

There is only one Scala file:

package object newtype {
    @newtype case class Word(s: String)
    case class Id(i: Int)
}

When running sbt clean coverage test coverageReport in coverage report there is no Id class, but there are Word and Word.Ops$newtype classes. They should not affect overall coverage too (as Id does).

[ckipp01]

Thanks for the report @gzoom13 I'm going to transfer this over to the main repo as it would need to be looked at there.