This ensures the parameters used by if-else logic accept only boolean
values because non-boolean can result in unexpected behavior.
Change-Id: I963d73e46f82a780486fa282b424151485e43d1e
Adds new barbican::worker class that can be used to manage
the package and service for barbican-worker.
Change-Id: Ifb9104523f5f4c44bf14d150a7189ccfebafb6bf