Feature request

Feature description

rmw_set_log_severity was added in:

• Enable setting log levels in DDS implementation rmw#124
• API to enable log severity setting.  rmw_implementation#30

It's implemented by the rmw implementations (Cyclone DDS, FastDDS, Connext), but it doesn't really seem to be used anywhere/by anything.

It would make sense to have rcl (e.g. rcl_logging_configure()?) call rmw_set_log_severity() along with its own logging level configuration. Is there any reason why these two shouldn't be connected?

Implementation considerations

TBD