IDEA-95729 Make a registry option

If somebody reports that the option is needed,
we'll be able to provide a registry workaround to the user.

This is an improvement to 56239162f
Make the constant final
junit: allow passing param set name to junit @Parameterized through program parameters
junit: allow run with working directory $MODULE_DIR$ across multiple modules
junit: allow to run one-param-set parameterized test from tests view (~IDEA-65966)