Add Couchbase as a backend supported database

[shivaycb]

Add Support for Couchbase as a backend database like #89 mongodb support

[harshalmore31]

@shivay-couchbase Thank you for opening this issue and suggesting Couchbase support. We’re keeping this in consideration for a future update.

[AltuisticIsopod]

Hey @harshalmore31 , I can work on this. Can you assign this to me?

[harshalmore31]

@AltuisticIsopod Thanks for your interest in contributing! Of course, I assign this issue to you.