Allow LSS configure node to also run in global mode, but only to
set node ID to 255 (0xFF), i.e. to remove configuration.
This way we can easily un-configure all nodes and start all over
with e.g. fastscan.
LSS has two selection modes: global (all nodes) and selective
(just one).
The current implementation defensively refuses to perform some
operations in global mode which are potentially disruptive
(e.g. set node id).
However, reading the node ID and/or LSS identity should not
be dangerous at all since in some cases it might be useful
to just read the identity of a single connected node.
Not quite sure what the behavior with multiple nodes will
be though, since it's theoretically possible to get inconsistent
results by mixing up answers from different nodes.
- needs #define CO_NO_LSS_CLIENT 1 in CO_OD.h. This will need a change in the OD editor.
- still no fastscan support
- bitrate settin API untested
- some changes on LSS slave where necessary
