Ping Pong support

[maxfriedmann]

A new tournament screen shall show

• the two parties currently playing
• the score
• who's gonna serve (match needs a new generic data property)
• the option to finish a game and go to the next one in the tournament

In addition, we need a new match type called "best of 3" which should be reflected as one match with the final result (2:1, 1:2, 2:0, 0:2) and the sub results as string.

It should also be possible to set the initial server and the limit of 21 or 11.

Tasks

• Tournament Screen
• Best of 3 match type
• Possibility to set server and limit