add lightning progress to setup-sync-info

[cstenglein]

Currently the setup-sync-info does not deliver lightning progress data:

{
    "initialsync": "running",
    "btc_default": "bitcoin",
    "btc_default_ready": "1",
    "btc_default_sync_percentage": "100.00",
    "btc_default_peers": "3",
    "system_count_start_blockchain": "1",
    "ln_default": "cl",
    "ln_default_ready": "1",
    "ln_default_locked": "0",
    "system_count_start_lightning": "0"
}

This confuses the user, since the sync progress is 100%, but in fact it is not since the lightning progress is not done:

[fusion44]

@rootzoll I think the setup was your part :)