Add module-info.java for standard Kotlin libraries

Using the new multi-release jar feature, store compiled
module-info.class files into META-INF/versions/9 instead of the artifact
root. Hopefully, this will break fewer tools which do not support
module-info.class files because any sane tool should not do anything
with files in META-INF because before Java 9 that directory only
contained resources.

Upgrade some Maven plugins to newer versions which do not fail on
module-info.class files

 #KT-21266 In Progress

(cherry picked from commit 2d41c7d462)

libraries/stdlib/jdk7/java9/module-info.java

@@ -0,0 +1,5 @@
+module kotlin.stdlib.jdk7 {
+    requires transitive kotlin.stdlib;
+
+    exports kotlin.jdk7;
+}