Seekable
Seekable permits random access read and write
Append
examples of appending data to the end of a Seekable (In this case files)
import scalax.io._
// see codec example for why codec is required
implicit val codec = Codec.UTF8
val someFile: Seekable = Resource.fromFileString("someFile")
someFile.append("append this string")
someFile.appendStrings(List("s one", "s two"),Line.Terminators.RNPair.sep)