Add Strict Compiler Flags

[devind-ra]

Fix for issue in #196

Initially the following flags were added:

The result of running ./sbt clean compile test:compile resulted in these warnings:

warning: value scalafixScalaBinaryVersion in object autoImport is deprecated (since 0.12.1): scalafixScalaBinaryVersion now follows scalaVersion by default scalafixScalaBinaryVersion := CrossVersion.binaryScalaVersion(scalaVersion.value), ^

scalafixScalaBinaryVersion := CrossVersion.binaryScalaVersion(scalaVersion.value) was removed and ./sbt clean compile test:compile was ran again and build passed along with all tests passing.

Then with the addition of "-Xfatal-warnings", the build and tests passed correctly.

Flags now in place:

[devind-ra]

Hi @petarcurcin @drmarjanovic, are we allowed to use these flags for scala version 3:

Seq( "-Werror", "-Wunused:all", "-Wvalue-discard", "-deprecation", "-feature", "-unchecked" )

As I had tests issues from the scala version scripts that were being run in the CI pipeline.