Bug 1132952 - Process and some other platform services are not listed under group creation dialog search filter

An issue with the runs-inside feature in plugin descriptors.

Now showing resource types under their parent, if they only have one,
under the plugin otherwise.

(cherry picked from commit 98462ee03bbc5000792c56b28752b1a09212e7c4)
Signed-off-by: Jay Shaughnessy <jshaughn@redhat.com>
[1132952] Process and some other platform services are not listed under group creation dialog search filter
complement previous work adding sorting of the type names.

(cherry picked from commit f41459a9ff11bec97203a3ebf0a62009b90e0280)
Signed-off-by: Jay Shaughnessy <jshaughn@redhat.com>