`wartremover:cp` option with Scala 3

[xuwei-k]

e.g. dependsOnLocalProjectWarts does not work.

wartremover/core/src/main/scala-3/org/wartremover/Plugin.scala

Lines 28 to 47 in ee3b0da

	val excluded = options.collect { case s"excluded:${path}" =>
	new File(path).getAbsolutePath
	}
	val (errors1, errorWarts) = options.collect { case s"traverser:${name}" =>
	loadWart(name)
	}.partitionMap(identity)
	val (errors2, warningWarts) = options.collect { case s"only-warn-traverser:${name}" =>
	loadWart(name)
	}.partitionMap(identity)
	val loglevel = options.collect { case s"loglevel:${level}" =>
	LogLevel.map.get(level)
	}.flatten.headOption.getOrElse(LogLevel.Disable)
	val newPhase = new WartremoverPhase(
	errorWarts = errorWarts,
	warningWarts = warningWarts,
	loadFailureWarts = errors1 ++ errors2,
	excluded = excluded,
	logLevel = loglevel,
	initialLog = initialLog,
	)