1v1 tournament logic

[Apfelwurm]

there are a few things not working in the 1v1 tournament right now:

if player teams are allowed and the randomize is setted, on challonges site participants as well as teams are created as entity, which results in double the sign ups and matches that are expected.

When player teams are not allowed, no team is created in eventula right now, which then breaks the generation of the tournament configuration, since the participants there are received via the team.

We have to see how this can be implemented (most likeley just like in MM)