[irobot] Some enhancements (#9973)

[irobot] Some enhancements (#9973)

* [irobot] Roomba: Add more properties.
On request by @falkena, also some i7 specifics

* [irobot] Roomba: Add map_upload channel.
Controls uploading Clean Map(tm) to the cloud.

* [irobot] discovery: Get rid of empty while() loop
Rewrite the loop so that it doesn't have empty body any more, this gets rid of
one more static analyzer warning. Added dumping the whole IDENT packet on TRACE
level, aids implementing support for newer devices.

Signed-off-by: Pavel Fedin <pavel_fedin@mail.ru>