add always flag to custom properties

Is the intent that an 'always' custom item should fire on each system boot, regardless of whether the property changed or not? If so, the line 50 above if ( !OVF::State::ovfIsChanged( $property, %options ) ) { ... return ... } will skip the custom 'always' defined property. Unless some property was changed in the property 'group' the always custom part won't run. (Either way I will also add back the Custom::Module::apply back into the fvorge-lite.pl)