Add functionality to dump MongoDB

I think only used for Unify Controllers?

https://community.ui.com/questions/UniFi-How-do-I-backup-my-controller-configuration/7b82ec30-94f2-414f-a93c-db75a77b94be

Wow, did not know it uses (or used) MongoDB!

Good find!

$ hostname unifi-control

$ which mongodump /usr/bin/mongodump

Cut-n-paste in case the link goes away

mongodump --port 27117 mongorestore --port 27117

https://www.mongodb.com

<URL: https://rt5.real-time.com/rt5/Ticket/Display.html?id=80879 >