Adding two more variable, asked by VLAD_ to see which run was cleaner than the others, especially for tiny maps.

The "XP" is a new customable variable that can be found on the scoreboard at the end of your replay. It goes higher depending on how well your soldiers are doing on the mission. Did any of them died, or is anyone wounded ? It will decrease the amount of XP you get.

For now, it won't change a lot for the leaderboard since i didn't find anything to sort the leaderboard with XP after checking the timer. If anyone has an idea, i'll take anything !

Also adding the "Co-op" categories, for speedruns made with multiple speedrunner.