[GameLogic] Add racing presets and coresponding leaderboards

[Elharter]

Category: GameLogic

Reporter: DaveCZ

Description: 3 race modes:

1st "Casual" low demage and etc.
2nd "Realistic" high demage and etc.
3rd "Custom" host can set settings himself this should not have leaderboard

[Elharter]

Very nice idea!

So we could do a "pre-set" of values and call it like that.