Create a new user object in WhosPcRpl if it does not exist yet

[NanoSector]

This should increase reliability with hopefully no side effects. All user information should be in the WhosPcRpl message and thus creating users at this stage should be safe.

[NanoSector]

Upon further checks, the user object should be created upon the NamReply message. This change becomes redundant and the original behaviour might even be useful as a bug check.

I'll leave this open for now, it's probably best to investigate the proper chain of messages before acting on this. The issue originally linked had a deeper bug.