GROOVY-11896: Support module import declarations

Hi folks,

Just seeking feedback if anyone sees problems with the following proposal:

https://issues.apache.org/jira/browse/GROOVY-11896

https://github.com/apache/groovy/pull/2429

It adds support for module import declarations (JDK 25/JEP 511):

import module java.base
var latch = new CountDownLatch(1)

import module org.junit.jupiter.api
assert Test.name == 'org.junit.jupiter.api.Test'
assert DisabledIf.name == 'org.junit.jupiter.api.condition.DisabledIf'

Groovy 6 would support them from JDK17.

We have, in much earlier conversations, discussed following Scala's
lead and having something like an "import java.util.**" and importing
all classes and child package classes, but we never progressed the
idea, and following Java's lead here seems the way to go.

Cheers, Paul.