Rename JsonMapper-specific properties to make it clear that they're JSON-specific #47328
Description
Most of our Jackson properties apply to MapperBuilder. There are two exceptions:
spring.jackson.readspring.jackson.write
These properties only apply to JsonMapper.Builder. We should rename them to spring.jackson.json.read and spring.jackson.json.write so that the property names make this more clear. This will also pave the way for XML and CBOR-specific properties that we may want to add in the future if we add support for auto-configuring an XmlMapper or CBORMapper.