add basic core structure and first parts of antGame implementation

src/main/java/core/RNG.java

@@ -0,0 +1,19 @@
+package core;
+
+import java.util.Random;
+
+public class RNG {
+    private static final Random rng;
+    private static final int SEED = 123;
+    static {
+        rng = new Random(SEED);
+    }
+
+    public static Random getRandom() {
+        return rng;
+    }
+
+    public static void reseed(){
+        rng.setSeed(SEED);
+    }
+}