SI-7843 Restore JSR 223 service entry

The 2.10 fix to remove the ScriptEngine service entry
was inadvertently forwarded to 2.11.

This commit reverts and adds a test.

This situation was entirely foreseen by retronym,
proving beyond doubt that he is in fact a time traveler,
as hinted by his name. He brings bugs forward into the
future and returns into the past with fixes and other
alien technology like scalaz.

Test due to https://gist.github.com/takawitter/5479445