Update tests to use ScalaTest 3.0.1

apps/routerconsole/java/build.xml

...test/net/i2p/router/update/ConsoleUpdateManagerSpec.scala

build.properties

core/java/build.xml

core/java/test/scalatest/net/i2p/data/HashSpec.scala

core/java/test/scalatest/net/i2p/data/PrivateKeySpec.scala

core/java/test/scalatest/net/i2p/data/PublicKeySpec.scala

core/java/test/scalatest/net/i2p/data/SessionKeySpec.scala

core/java/test/scalatest/net/i2p/data/SessionTagSpec.scala

core/java/test/scalatest/net/i2p/data/SignatureSpec.scala

...a/test/scalatest/net/i2p/data/SigningPrivateKeySpec.scala

...va/test/scalatest/net/i2p/data/SigningPublicKeySpec.scala

core/java/test/scalatest/net/i2p/data/TunnelIdSpec.scala

...a/test/scalatest/net/i2p/util/VersionComparatorSpec.scala

router/java/build.xml