Refactor Ubuntu support logic post-PR
Refactor Ubuntu support logic post-PR

Simplify OS-detection logic to simply use the appropriate
package manger at package install time.

Use correct names for Ubuntu packages.

Signed-off-by: Daniel Farrell <65eaad88897e615d9128b5e890b98414aac720cc@redhat.com>

smallen3/wcbench,dfarrell07/wcbench,dfarrell07/wcbench,smallen3/wcbench