bionic: ensure crmsh package is installed

pacemaker no longer Recommends crmsh so explicitly install it
for all Ubuntu series as its required for charm operation.

Also enable bionic amulet test as part of a full gate recheck.

Change-Id: I06e0dcfec0a787f85655c89bf36e18253c75de2e

hooks/hooks.py

@@ -98,7 +98,7 @@ COROSYNC_CONF_FILES = [
     COROSYNC_CONF
 ]
 
-PACKAGES = ['corosync', 'pacemaker', 'python-netaddr', 'ipmitool',
+PACKAGES = ['crmsh', 'corosync', 'pacemaker', 'python-netaddr', 'ipmitool',
             'libnagios-plugin-perl']
 SUPPORTED_TRANSPORTS = ['udp', 'udpu', 'multicast', 'unicast']
 DEPRECATED_TRANSPORT_VALUES = {"multicast": "udp", "unicast": "udpu"}