Ensure that for each all package at least one pseudopackage is installed

Ensure that for each all package at least one pseudopackage is installed

Removing pseudo packages is cool so far, the problem is that we will
remove with the not required removing so many pseudo packages that
we will have after the remove a few packages with NO installed pseudo
package (e.g. metapackages are good candidates) - so we will walk over
all these packages and try to find a pseudopackage for this package
we can install without breaking something.