Moving getConfigPath() into utils.cpp. Moving ConnectionInformation into
connectioninformation.cpp.
Adding a ConnectionInformation attribute in Message
A device must provide its address when it sends a message to the
computer.
When a device sends a message, the provided address is checked. If the
address is wrong, the message is skipped.
To know if an address is wrong or not, the program retrieves the ID of
the device at this number. If the ID retrieved does not match with that
of the device, then the address is wrong.