Expose if the host has at least one system report tool

This is needed to enable/disable system reports on UI.
When the host does not have at least one system report tool the user
will not be able to generate debug reports.
For it, the current debug reports implementation was splitted into small
functions to avoid duplicating code but the functionality remains as it was.

Signed-off-by: Aline Manera <alinefm@br.ibm.com>
Add sos/sosreport package as Kimchi dependency

Fedora and RHEL distributions provide 'sosreport' command by sos package
and Ubuntu do it by sosreport package.
Adding this package as Kimchi dependency allow the user always has the
debug report feature enabled while working on these systems.

Signed-off-by: Aline Manera <alinefm@br.ibm.com>