Replace scala.Symbol Literals with String values

https://scalacenter.github.io/scalafix/docs/rules/external-rules.html

project/scalafix.sbt

addSbtPlugin("ch.epfl.scala" % "sbt-scalafix" % "0.9.19")

sbt shell

> scalafixEnable
> scalafix dependency:ReplaceSymbolLiterals@io.github.godenji:replace-symbol-literals-to-string:0.1.1
> test:scalafix dependency:ReplaceSymbolLiterals@io.github.godenji:replace-symbol-literals-to-string:0.1.1