Add config option to change console server's signature, namecard, level and world level (#586)

* Add files via upload

* Add files via upload

* Update GameConstants.java

* Update Config.java

* Update PacketGetPlayerFriendListRsp.java

src/main/java/emu/grasscutter/Config.java

@@ -82,6 +82,10 @@ public final class Config {
 		public boolean WatchGacha = false;
 		public String ServerNickname = "Server";
 		public int ServerAvatarId = 10000007;
+		public int ServerNameCardId = 210001;
+		public int ServerLevel = 1;
+		public int ServerWorldLevel = 1;
+		public String ServerSignature = "Server Signature";
 		public int[] WelcomeEmotes = {2007, 1002, 4010};
 		public String WelcomeMotd = "Welcome to Grasscutter emu";
 		public String WelcomeMailTitle = "Welcome to Grasscutter!";

src/main/java/emu/grasscutter/GameConstants.java

@@ -13,7 +13,11 @@ public final class GameConstants {
 	public static final int MAIN_CHARACTER_FEMALE = 10000007;
 	public static final String SERVER_AVATAR_NAME = Grasscutter.getConfig().getGameServerOptions().ServerNickname;
 	public static final int SERVER_AVATAR_ID = Grasscutter.getConfig().getGameServerOptions().ServerAvatarId;
+	public static final String SERVER_SIGNATURE = Grasscutter.getConfig().getGameServerOptions().ServerSignature;
 	public static final Position START_POSITION = new Position(2747, 194, -1719);
+	public static final int SERVER_NAMECARD_ID = Grasscutter.getConfig().getGameServerOptions().ServerNameCardId;
+	public static final int SERVER_LEVEL = Grasscutter.getConfig().getGameServerOptions().ServerLevel;
+	public static final int SERVER_WORLD_LEVEL = Grasscutter.getConfig().getGameServerOptions().ServerWorldLevel;
 	
 	public static final int MAX_FRIENDS = 45;
 	public static final int MAX_FRIEND_REQUESTS = 50;

src/main/java/emu/grasscutter/server/packet/send/PacketGetPlayerFriendListRsp.java

@@ -19,12 +19,12 @@ public class PacketGetPlayerFriendListRsp extends BasePacket {
 		FriendBrief serverFriend = FriendBrief.newBuilder()
 				.setUid(GameConstants.SERVER_CONSOLE_UID)
 				.setNickname(GameConstants.SERVER_AVATAR_NAME)
-				.setLevel(1)
+				.setLevel(GameConstants.SERVER_LEVEL)
 				.setProfilePicture(ProfilePicture.newBuilder().setAvatarId(GameConstants.SERVER_AVATAR_ID))
-				.setWorldLevel(0)
-				.setSignature("")
+				.setWorldLevel(GameConstants.SERVER_WORLD_LEVEL)
+				.setSignature(GameConstants.SERVER_SIGNATURE)
 				.setLastActiveTime((int) (System.currentTimeMillis() / 1000f))
-				.setNameCardId(210001)
+				.setNameCardId(GameConstants.SERVER_NAMECARD_ID)
 				.setOnlineState(FriendOnlineState.FRIEND_ONLINE)
 				.setParam(1)
 				.setIsGameSource(true)