[new-product] Oracle JDK and OpenJDK builds from Oracle

The current https://endoflife.date/java page is documenting both products, despite them being different.

Old URLs (/java, /openjdk, /jdk) are now redirected to the new Oracle JDK page, as this page is similar to the old one.
But once #3329 is merged, we could redirect to /tags/java-distribution instead.

products/oracle-jdk.md

@@ -211,3 +211,5 @@ check out [whichjdk.com](https://whichjdk.com/#oracle-java-se-development-kit-jd
 > Those versions were released under the Sun Microsystems umbrella, before
 > [its acquisition by Oracle in 2010](https://wikipedia.org/wiki/Sun_Microsystems).
 > They were not based on OpenJDK and were following a different support policy.
+
+