Add an option to serialize the graph `<id>` to json.

# Feature Request:
Add an option `serializeId`(default `false`)
    if set to `true`, serialize `BaseNode`'s `Id` field to json.

## Context
I have the requirement to populate graph `id` to json response and CRUD data by `id`

## Alternatives

## Would you be interested in implementing this feature?
Yes 
