This PR is part of network incentivisation. It adds a way for a client
to pull nodes from a contract.
This is done by selecting the `eth.contract` fleet. If that is selected
on login it will fetch nodes from a contract and pass them to status-go.
If these can't be fetched, it will default to `eth.beta`.
Currently contract information are hard-coded, but eventually the user
will be able to add their own (probably).
Toggled off in release.
Signed-off-by: Andrea Maria Piana <andrea.maria.piana@gmail.com>
Andrea Maria Piana
f8674c0ee1