Add new program msat_wr_er.py for adding applicable packages to a
software channel based on the Red Hat Security Advisory (RHSA) label
Merge branch 'master' of github.com:aberends/msat
Revert "Recover msat_wr_sc_rpms.py deleted mistakenly by @aberends"

This reverts commit 9d50e0ecaaddc6ece72bacdd20922b37dedbe99a.

Functionality already provided by msat_wr_sc.py