Encounter v1.55 surrender and dodge

Now, player can surrender to police and pirate. Same as trader, if
player surrendered, player will lost everything in player's cargo. if
player's credit was greater than 10000, player would lost all of the
credit. However, enemies are not evils. They would left 10000 credit for
player. if player's credit was less than 10000, they would not take
player's credit.
Second, enemy's hit rate is now based on calculation. Namely, player's
dodge rate is increased according to player's pilot skill.
do NOT try to attack anyone when you just start a new game. Nobody is
gonna to lose to a newbie. If you wanna see how the fight works, use
debug in the menu bar, it will initial a player with higher skill
points.