Fixing injuries in Football Stars

In the last update, we've made a bug that broke Aggressive Tackling. As a result, AI just couldn't use it correctly because the action was broken.
Now, we have fixed the problem. As a result:
- AI won't use Aggressive Tackle in some situations (if there's a too low probability of tackling or when its team has the red cards).
- Fixed the bug which made the Aggressive Tackle to use the Defence attribute wrongly.
- There are some additional improvements to the injuries generation mechanics which should improve the overall balance both for those who simulate matches and those who play the matches. Also, we took care that the probabilities worked consistently for different lengths of the matches.
- Fixed the crash which happened when you opened the footballer's profile from the Sponsors screen.
- Fixed the crashed which happened when simulating and playing the matches.