DomainObjectSerializer API

[beikov]

The idea is to provide an API for serializing and deserializing domain objects to some format(csv, excel, json, xml, etc.). This is similar/related to expression serialization in blaze-expression, but in this case is only for domain objects. The serializer contract should offer methods for serializing a header and payload. The idea is that the header only needs to be serialized once and payload can be serialized multiple times afterwards into an existing context.

I have to think more about this, as we might move this to blaze-data. Not sure if it even makes sense to define the base contracts in blaze-domain.

The main driver for this is the serialization/deserialization for the excel format. The implementation should use a library like Apache POI. The domain model contains serialization metadata e.g. @ExcelColumn(index = 1, converter = SomeConverter.class) which is used to drive the serialization. The API should be capable to create a specialized serializer/deserializer for a domain type so that it can spin bytecode behind the scenes if wanted. The converter is very similar to the TypeAdapter contract in blaze-expression, so we might want to lift this contract into blaze-domain.