feat(attack): esquelet WhipAttack + canal d'spawn via EventBus

CMakeLists.txt

@@ -48,6 +48,7 @@ set(ENTITY_SOURCES
     source/game/entities/concrete/wall_trap.cpp
     source/game/entities/concrete/floor_trap.cpp
     source/game/entities/concrete/dust.cpp
+    source/game/entities/concrete/whip_attack.cpp
 )
 
 set(APP_SOURCES