feat: CharacterEnum, Player, Role class

src/main/java/com/lapisberry/game/entities/characters/CharacterEnum.java

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+package com.lapisberry.game.entities.characters;
+
+public enum CharacterEnum {
+    Bart_Cassidy, // *modified // need special turn state when losing a life point Bart can choose take arrow or not take arrow
+    Black_Jack,
+    Calamity_Janet,
+    El_Gringo,
+    Jesse_Jones,
+    Jourdonnais,
+    Kit_Carlson, // *modified // need more turn state to choose player
+    Lucky_Duke,
+    Paul_Regret,
+    Pedro_Ramirez, // *modified // need special turn state when losing a life point Pedro can choose discard arrow or not discard arrow
+    Rose_Doolan,
+    Sid_KetChum, // *modified // need more turn state to implement full skill
+    Slab_The_Killer, // *modified // need special dice state or damage to dice or new dice
+    Suzy_Lafayette,
+    Vulture_Sam,
+    Willy_The_Kid
+}

src/main/java/com/lapisberry/game/entities/players/Player.java

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+package com.lapisberry.game.entities.players;
+
+import java.io.Serial;
+import java.io.Serializable;
+
+/**
+ * The {@code Player} class is used for user to know a role and position of other players decide which character to pick.
+ */
+public class Player implements Serializable {
+    @Serial
+    private static final long serialVersionUID = -6540863475427867425L;
+    // Fields
+    private final int clientId;
+    private final String playerName;
+    private Role role;
+
+    // Constructors
+    public Player(int clientId, String playerName) {
+        this.clientId = clientId;
+        this.playerName = playerName;
+    }
+
+    // Getter Setters
+    public int getClientId() {
+        return clientId;
+    }
+
+    public String getPlayerName() {
+        return playerName;
+    }
+
+    public Role getRole() {
+        return role;
+    }
+
+    public void setRole(Role role) {
+        this.role = role;
+    }
+}

src/main/java/com/lapisberry/game/entities/players/Role.java

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+package com.lapisberry.game.entities.players;
+
+public enum Role {
+    EMPEROR,
+    ROYALIST,
+    REBEL,
+    SPY
+}