How to customize reporter for scala_test?

[viclovsky]

Rules_scala uses hardcoded reporter : io.bazel.rules.scala.JUnitXmlReporter .

We need to customize report type as colors/full_stacktraces attributes (https://github.com/bazelbuild/rules_scala/blob/eabb1d28fb288fb5b15857260f87818dda5a97c8/scala/private/rules/scala_test.bzl#L58).

Could you add such customization?
Or is there any alternative way to customize report?

[liucijus]

@viclovsky any chances you can send a PR for such configuration?