add system constants

Java-Knight/src/main/java/org/project/constants/appConstants/ConsoleColor.java

@@ -0,0 +1,5 @@
+package org.project.constants.appConstants;
+
+public class ConsoleColor {
+    public static final String Reset = "\\u001B[0m";
+}

Java-Knight/src/main/java/org/project/constants/appConstants/GameModes.java

@@ -0,0 +1,6 @@
+package org.project.constants.appConstants;
+
+public enum GameModes {
+    SINGLE_PLAYER,
+    MULTI_PLAYER_LOCAL
+}

Java-Knight/src/main/java/org/project/constants/appConstants/TextColor.java

@@ -0,0 +1,12 @@
+package org.project.constants.appConstants;
+
+public class TextColor extends ConsoleColor{
+    public static String Black = "\\u001B[30m";
+    public static String Red = "\\u001B[31m";
+    public static String Green = "\\u001B[32m";
+    public static String Yellow = "\\u001B[33m";
+    public static String Blue = "\\u001B[34m";
+    public static String Magenta = "\\u001B[35m";
+    public static String Cyan = "\\u001B[36m";
+    public static String White = "\\u001B[37m";
+}