Add LyricDownloader code with scala implementation

It used regex, network, etc scala implementation and fetched lyrics batch for the songs folder.
It's my first to time use Scala, so it written in HelloWorldScala with IntelliJ, I wants to move it to LyricDownloader project, but my Intellij seems has some issues right now. Let me refine it later.
Merge branch 'master' of https://github.com/elixir67/Sandbox
Revert "Add LyricDownloader code with scala implementation"

This reverts commit 3f800969e22841e78e0f265bb317c95cce944876.