MrBean module should not materialize `java.io.Serializable`

[georgschmidtdumont]

As already discussed in Issue 28 in the deprecated FasterXML Mr Bean project, the AbstractTypeMaterializer should not materialize Serializable.

For example we are having a Map<String, Serializable> which causes a MismatchedInputException: Cannot construct instance of com.fasterxml.jackson.module.mrbean.generated.java.io.Serializable.