Adds Utility package with a Pair<L, R> class

src/main/java/de/tu_darmstadt/tk/SmartHomeNetworkSim/core/util/Pair.java

@@ -0,0 +1,47 @@
+package de.tu_darmstadt.tk.SmartHomeNetworkSim.core.util;
+
+public class Pair<L, R>{
+	private L left;
+	private R right;
+	
+	public Pair(L left, R right){
+		this.left = left;
+		this.right = right;
+	}
+
+	/**
+	 * @return the left
+	 */
+	public L getLeft() {
+		return left;
+	}
+
+	/**
+	 * @param left the left to set
+	 */
+	public void setLeft(L left) {
+		this.left = left;
+	}
+
+	/**
+	 * @return the right
+	 */
+	public R getRight() {
+		return right;
+	}
+
+	/**
+	 * @param right the right to set
+	 */
+	public void setRight(R right) {
+		this.right = right;
+	}
+	
+	@Override
+	public boolean equals(Object obj) {
+		if(obj == null || ! (obj instanceof Pair<?, ?>))return false;
+		Pair<?, ?> other = (Pair<?, ?>)obj;
+		return left.equals(other.left)&&right.equals(other.right) 
+			|| left.equals(other.right)&&right.equals(other.left) ;
+	}
+}

src/main/java/de/tu_darmstadt/tk/SmartHomeNetworkSim/core/util/package-info.java

@@ -0,0 +1,6 @@
+/**
+ * Package for useful classes, which don't fit into other packages.
+ * 
+ * @author Andreas T. Meyer-Berg
+ */
+package de.tu_darmstadt.tk.SmartHomeNetworkSim.core.util;