Adding LifeState enum

LifeState represents if the chacater is Alive, Dead or Fainted.

Assets/BossRoom/Scripts/Shared/NetworkCharacterState.cs

 namespace BossRoom
 {
 
-
+    public enum LifeState
+    {
+        ALIVE,
+        FAINTED,
+        DEAD
+    }
 
     /// <summary>
     /// Contains all NetworkedVars and RPCs of a character. This component is present on both client and server objects.
         public NetworkedVarFloat NetworkMovementSpeed { get; } = new NetworkedVarFloat();
 
         public NetworkedVarInt HitPoints;
-        public NetworkedVarInt Mana;
-
+        public NetworkedVarInt Mana; 
+        public NetworkedVar<LifeState> NetworkLifeState { get; } = new NetworkedVar<LifeState>(LifeState.ALIVE);
+        
         /// <summary>
         /// Gets invoked when inputs are received from the client which own this networked character.
         /// </summary>