[Feature Request] Enstore config file consolidation

[jeffderbyshire]

Allow templates for blocks of similar parameters that are shared between movers for a start. This will help greatly for readability of the enormous config file.

`'10KC_081A.mover': {'check_first_written_file': 0,
                     'check_written_file': 900,
                     'compression': 0,
                     'data_ip': 'enmvr081',
                     'dismount_delay': 30,
                     'do_cleaning': 'No',
                     'driver': 'FTTDriver',
                     'host': 'enmvr081',
                     'hostip': '131.225.13.65',
                     'library': 'CD-10KCF1.library_manager',
                     'logname': '10KC_081AMV',
                     'max_buffer': 3145728000L,
                     'max_consecutive_failures': 3,
                     'max_failures': 5,
                     'max_rate': 251658240.0,
                     'max_time_in_state': 1200,
                     'mc_device': '1,0,1,14',
                     'media_changer': 'SL8500F1.media_changer',
                     'min_buffer': 67108864L,
                     'mount_delay': 15,
                     'norestart': 'INQ',
                     'port': 7938,
                     'send_stats': 1,
                     'single_filemark': 1,
                     'statistics_path': '/tmp/enstore/enstore/10KC_081A.stat',
                     'status': ('ok', None),
                     'syslog_entry': 'sense|st[0-9]',
                     'update_interval': 2,
                     'update_interval_in_bound': 2},

becomes

 '10KC_081A.mover' = generic_10KC_mover_template
'10KC_081A.mover': {
                     'host': 'enmvr081',
                     'hostip': '131.225.13.65',
                     'library': 'CD-10KCF1.library_manager',
                     'logname': '10KC_081AMV',
                     'media_changer': 'SL8500F1.media_changer',
                     'statistics_path': '/tmp/enstore/enstore/10KC_081A.stat'
}