Consider changing the package

[jackkoenig]

I noticed that adding this as a dependency (transitively via io.get-coursier::coursier-cache) breaks any Scala code that uses scala.io.Source but drops the scala, eg.

//> using scala "2.13"
//> using lib "io.get-coursier::coursier-cache:2.1.8"

object Main extends App {
  io.Source.fromString("Hello World").getLines.foreach(println)
}

Running the above with scala-cli gives:

[error] ./coursier.scala:5:3
[error] object Source is not a member of package io
[error]   io.Source.fromString("Hello World").getLines.foreach(println)
[error]   ^^^^^^^^^

Perhaps eliding the scala. in io.Source is ill-advised, but I think it would help a lot of downstream users if this project didn't start with package io.