show interfaces breakout not working

[tim-rj]

Description

show interfaces breakout not working

Steps to reproduce the issue:
1.show interfaces breakout

Describe the results you received:

root@sonic:/var/core# show interfaces breakout 
Traceback (most recent call last):
  File "/usr/bin/show", line 12, in <module>
    sys.exit(cli())
  File "/usr/lib/python2.7/dist-packages/click/core.py", line 764, in __call__
    return self.main(*args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/click/core.py", line 717, in main
    rv = self.invoke(ctx)
  File "/usr/lib/python2.7/dist-packages/click/core.py", line 1137, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/usr/lib/python2.7/dist-packages/click/core.py", line 1137, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/usr/lib/python2.7/dist-packages/click/core.py", line 1114, in invoke
    return Command.invoke(self, ctx)
  File "/usr/lib/python2.7/dist-packages/click/core.py", line 956, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/usr/lib/python2.7/dist-packages/click/core.py", line 555, in invoke
    return callback(*args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/click/decorators.py", line 17, in new_func
    return f(get_current_context(), *args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/show/interfaces/__init__.py", line 118, in breakout
    config_db = ConfigDBConnector()
NameError: global name 'ConfigDBConnector' is not defined

Describe the results you expected:

Additional information you deem important (e.g. issue happens only occasionally):

**Output of `show version`:**

```

root@sonic:/home/admin# show version

SONiC Software Version: SONiC.master.399-07b9d7f4
Distribution: Debian 10.5
Kernel: 4.19.0-9-2-amd64
Build commit: 07b9d7f
Build date: Sun Aug 30 07:41:30 UTC 2020
Built by: johnar@jenkins-worker-8

Platform: x86_64-ruijie_b6510-48vs8cq-r0
HwSKU: B6510-48VS8CQ
ASIC: broadcom
Serial Number: G1W10072
Uptime: 17:26:38 up 2:51, 1 user, load average: 0.46, 0.37, 0.29

Docker images:
REPOSITORY TAG IMAGE ID SIZE
docker-teamd latest 0da13af040db 386MB
docker-teamd master.399-07b9d7f4 0da13af040db 386MB
docker-sonic-mgmt-framework latest b3309c50c848 481MB
docker-sonic-mgmt-framework master.399-07b9d7f4 b3309c50c848 481MB
docker-router-advertiser latest 81563660196e 355MB
docker-router-advertiser master.399-07b9d7f4 81563660196e 355MB
docker-platform-monitor latest bfc946290aa4 429MB
docker-platform-monitor master.399-07b9d7f4 bfc946290aa4 429MB
docker-lldp latest 17607fd34cc8 383MB
docker-lldp master.399-07b9d7f4 17607fd34cc8 383MB
docker-dhcp-relay latest 57d5a7e2d58d 362MB
docker-dhcp-relay master.399-07b9d7f4 57d5a7e2d58d 362MB
docker-database latest ddb145fe6d62 355MB
docker-database master.399-07b9d7f4 ddb145fe6d62 355MB
docker-orchagent latest 2b0a4c92794f 400MB
docker-orchagent master.399-07b9d7f4 2b0a4c92794f 400MB
docker-nat latest eb5c6b6736c2 389MB
docker-nat master.399-07b9d7f4 eb5c6b6736c2 389MB
docker-sonic-telemetry latest 6c4292e948fd 425MB
docker-sonic-telemetry master.399-07b9d7f4 6c4292e948fd 425MB
docker-fpm-frr latest 076744e3f438 402MB
docker-fpm-frr master.399-07b9d7f4 076744e3f438 402MB
docker-sflow latest 1046ede2b365 390MB
docker-sflow master.399-07b9d7f4 1046ede2b365 390MB
docker-snmp latest ffbf20d1540a 395MB
docker-snmp master.399-07b9d7f4 ffbf20d1540a 395MB
docker-syncd-brcm latest d62f6c218ce2 447MB
docker-syncd-brcm master.399-07b9d7f4 d62f6c218ce2 447MB

root@sonic:/home/admin#
```

**Attach debug file `sudo generate_dump`:**

```
(paste your output here)
```

[dmytroxshevchuk]

Please check fix in PR:
sonic-net/sonic-utilities#1198

[dmytroxshevchuk]

PR sonic-net/sonic-utilities#1198 was merged, so issue must be resolved after update submodule.