GWMessageHandlerImpl: copy more details in sanitizeDeviceDescription()
GWMessageHandlerImpl: copy more details in sanitizeDeviceDescription()

The received DeviceDescription is sanitized before using it by the rest
of the server logic. Any changes to DeviceDescription must be also
reflected in this code. The added fields to DeviceDescription must be
explicitly sanitized and copied.

Signed-off-by: Jan Viktorin <3eab6ac54c005c4408f608556a6663b7f2abede7@fit.vutbr.cz>

BeeeOn/server,BeeeOn/server,BeeeOn/server,BeeeOn/server