Integrate java8-freemarker objectwrapper to support new java8 time APIs
Currently we already have the java8-freemarker extension in our dependencies but it's not working since it has to be activated via configuration.
E.g. configuration.setObjectWrapper(new Java8ObjectWrapper(Configuration.VERSION_2_3_23));
FreemarkerService in our project should be extended to support the Java8ObjectWrapper (including the existing).
Without integration of this extension it's not directly possible to render from java8 time api datatypes like Instant
.