[VirtualBox/f28] (4 commits) ...Enable Python3 support, move all SDK python files to devel sub-package, they

Summary of changes: bc5b54d... more updates on script helper (*) c40c422... VirtualBox 6.0 Patch23 was applied upstream. (*) 68e2dc7... git add VirtualBox-6.0.0-noupdate.patch (*) 16ead04... Enable Python3 support, move all SDK python files to devel (*) (*) This commit already existed in another branch; no separate mail sent