All eligible validators are included in the validator set at genesis

[kostko]

Currently it seems that all eligible validator nodes are included in the validator set at genesis instead of the top K. We should instead run the election algorithm to derive the initial set.

Reference:

oasis-core/go/consensus/tendermint/api/genesis.go

Lines 114 to 156 in 1bb5b80

	var tmValidators []tmtypes.GenesisValidator
	for _, v := range d.Registry.Nodes {
	var openedNode node.Node
	if err = v.Open(registry.RegisterGenesisNodeSignatureContext, &openedNode); err != nil {
	return nil, fmt.Errorf("tendermint: failed to verify validator: %w", err)
	}
	// TODO: This should cross check that the entity is valid.
	if !openedNode.HasRoles(node.RoleValidator) {
	continue
	}
	var power int64
	if d.Scheduler.Parameters.DebugBypassStake {
	power = 1
	} else {
	var stake *quantity.Quantity
	acctAddr := staking.NewAddress(openedNode.EntityID)
	if account, ok := d.Staking.Ledger[acctAddr]; ok {
	stake = account.Escrow.Active.Balance.Clone()
	} else {
	// If all balances and stuff are zero, it's permitted not to have an account in the ledger at all.
	stake = &quantity.Quantity{}
	}
	power, err = scheduler.VotingPowerFromStake(stake)
	if err != nil {
	return nil, fmt.Errorf("tendermint: computing voting power for entity %s with account %s and stake %v: %w",
	openedNode.EntityID,
	acctAddr,
	stake,
	err,
	)
	}
	}
	pk := crypto.PublicKeyToTendermint(&openedNode.Consensus.ID)
	validator := tmtypes.GenesisValidator{
	Address: pk.Address(),
	PubKey: pk,
	Power: power,
	Name: "oasis-validator-" + openedNode.ID.String(),
	}
	tmValidators = append(tmValidators, validator)
	}