Rockets rebalanse [CR]

Buffed ani-tank rockets' penetration based on real life statistic.
Buffed their damage: 1.rockets are pretty deadly without explosions by themselves, 2. Vehicle don't have armor, so rockets can leave "dents". It can be reverted after vehicle parts get armor values.
Nerfed some rockets explosions.
Buffed not AT rockets damage and penetration a bit.