upnp: add functionality to get Platinum log messages
platinum: enable logging
platinum: add patch for 1dbb70de6caf307d87aa61e21fe324bbb1709a39
[darwin] add NPT_CONFIG_ENABLE_LOGGING flag to Xcode common configuration
Merge pull request #4717 from Montellese/platinum-logging

UPnP: enable log messages from Platinum SDK