For both lnd and clightning-rest, `lndconnectOnion` is replaced by
options `lndconnect.enable` and `lndconnect.onion`.
This allows using lndconnect without Tor.
Option `services.lnd.restOnionService.package` has been removed.
There's not much use in overriding the [lndconnect pkg](https://github.com/LN-Zap/lndconnect).
- Rename `services.rtl.cl-rest` to `services.clightning-rest`.
`clightning-rest` is generally useful for connecting external REST clients
to clightning.
- Add a dedicated network namespace in netns-isolation.
- Add nodeinfo entry.
- Add datadir (which contains REST auth data) to backups.
Split `enforceTor` into `tor.proxy` and `tor.enforce`.
By enabling `tor.proxy` without `tor.enforce`, a service can accept
incoming clearnet connections.
E.g., this allows setting up a Tor-proxied bitcoind node that accepts
RPC connections from LAN.
- `waitfornewblock` was previously not included in the public RPC
whitelist because it's reserved for testing and marked as hidden
in bitcoind.
- electrs changed its verbosity settings. `-vv` is now the best choice
for normal usage.
- bitcoind option `dataDirReadableByGroup` is now unused.
Because it can be valuable for other use cases and implementing
it is intricate, we're keeping it for now.
- test: keep `nc` connection open because otherwise the electrs
RPC server would now close the connection before sending a response.
Move this feature from a module preset to a regular option, so that it's
easily discoverable and accessible.
Simplify the implementation of `generateSecrets` by adding it to the
existing `setup-secrets` service script.
Also rename option setup-secrets -> setupSecrets.
