Allow boolean comparison for PyRealBoolean

Author: rakillen

core/src/main/java/oracle/weblogic/deploy/util/PyRealBoolean.java

@@ -47,6 +47,12 @@ public PyString __str__() {
         return new PyString(toString());
     }
 
+    @Override
+    // for Python boolean check, such as bool(abc), or if abc...
+    public boolean __nonzero__() {
+        return isTrue;
+    }
+
     @Override
     public boolean equals(Object other) {
         if(other instanceof PyRealBoolean) {