This work converts all the tests over to beaker. Some things are
done slightly different in beaker, we rely much more heavily on
catch_failures rather than explicitly laying out the exit codes we
want but I have attempted to preserve the spirit of all tests.
This is a very very large change to the module. It started out as a fix to add
postgresl::server::config_entry, and quickly became a rewrite to fix a lot of
ordering issues inherent in the API.
Since this changes the Public API it is considered a backwards compatible
change.
See the upgrading guide in README.md for more details as to what has been
modified in this patch.
Signed-off-by: Ken Barber <ken@bob.sh>
