provide slowdebug and fastdebug subpackages

[judovana]

This issue was pinpointed as regression in #848

Fedora and Rhel contains slow and fast debug subpakcages. This is very cool ferature in case JDK goes wild, as those are from same buildroot, which would be otherwise unreachable. Considering how differently are temurin jdks built, it may be better to provide different workaround then just implemnt fast and slow debug suibpkgs - eg links to slow/fastdebug tarballs....

Slightly more info in #848

@jiekang fyi!