fixes

Author: LukasMolzberger

src/main/java/network/aika/neuron/relation/Relation.java

@@ -52,10 +52,18 @@ public abstract class Relation implements Comparable<Relation>, Writable {
 
     public static Relation ANY = new Any();
 
-
     protected boolean optional;
     protected boolean follow = true;
 
+
+    public boolean isOptional() {
+        return optional;
+    }
+
+    public boolean isFollow() {
+        return follow;
+    }
+
     @Override
     public int compareTo(Relation rel) {
         return Integer.compare(getType(), rel.getType());