Added different ways the potato can be not delicious!

src/main/java/org/drtshock/NotDeliciousException.java

@@ -1,8 +1,17 @@
 package org.drtshock;
 
+/**
+ * An exception to describe that the potato isn't delicious!
+ */
 public class NotDeliciousException extends Exception {
 
-    public NotDeliciousException() {
+    /**
+     * The reason for non-deliciousness.
+     */
+    private NotDeliciousReason notDeliciousReason;
 
+    public NotDeliciousException(NotDeliciousReason notDeliciousReason) {
+        this.notDeliciousReason = notDeliciousReason;
     }
+
 }