Add centos 8 to osfingermap
add oracle linux 8 to osfingermap
moved RedHat/CentOS to osmap and osfingermap to accomodate changes in
package provider versionlock
enable centos-centos-8-master-py3
remove hardcoded packages
yum-plugin-versionlock was hardcoded for all redhat versions, which
is removed with centos 8.
the package alien has a depency on debhelper which is broken in Centos-8
add share folder testing
Co-authored-by: Imran Iqbal <myii@users.noreply.github.com>