Update 24

Added display of used resistances on maps
Added save and load slot system
Added display of the current order of mechs to the monitor in battle
Fixed a game crash when a mech touches a stone in the tornado
Added muted battle sounds during pilot conversations
Added sounds of firearms
Added sounds of explosions
Added sounds of flamethrower
Added sounds of radio noises
Changed the frequency of the pilot's conversations
Changed some of the phrases of the pilots
Changed the priority of conversation topics
Slowed down the flight speed of flamethrower projectiles