Add Pair.java

api/src/main/java/com/alttd/chat/util/Pair.java

@@ -0,0 +1,20 @@
+package com.alttd.chat.util;
+
+public class Pair<X, Y> {
+
+    private final X x;
+    private final Y y;
+
+    public Pair(X x, Y y) {
+        this.x = x;
+        this.y = y;
+    }
+
+    public X getX() {
+        return x;
+    }
+
+    public Y getY() {
+        return y;
+    }
+}