Simplify node network joining story

[sidmore]

Is your feature request related to a problem? Please describe.
Node joining a network should be simplified

Describe the solution you'd like
Current steps needed to join a node makes sense when their are multiple parties involved, for single consortium this can be simplified further and not need votes from members.

Describe alternatives you've considered
Had offline discussions with Amaury on this

Additional context
Add any other context about the feature request here.