Twirl enhancements

[mrdziuban]

This aims to bring the twirl module closer to parity with the twirl SBT plugin. It adds support for:

• Overriding full set of twirl template imports rather than just appending additional imports onto the default set
  • Renames twirlAdditionalImports to twirlImports
  • Sets the default value to play.japi.twirl.compiler.TwirlCompiler.DEFAULT_IMPORTS
• Overriding set of twirl extensions/formats that will be compiled
  • Adds def twirlFormats: T[Map[String, String]] to define a mapping from extension to class name
  • Sets the default value to

    Map(
      "html" -> "play.twirl.api.HtmlFormat",
      "xml" -> "play.twirl.api.XmlFormat",
      "js" -> "play.twirl.api.JavaScriptFormat",
      "txt" -> "play.twirl.api.TxtFormat")

[lefou]

Looks good to me. Can you please also update the documentation.

[mrdziuban]

Updated!

[mrdziuban]

Let me know if there's anything I can do to fix the CI failures (fatal: 32244f1de... is not a valid 'commit' object)

[lefou]

CI is ok. I've ran a separate job on my account: https://travis-ci.org/github/lefou/mill/builds/722758542

[lefou]

Thank you very much!