add Serializer/Deserializer strategy interfaces and default implementation [SPR-7627]

[spring-projects-issues]

Mark Fisher opened SPR-7627 and commented

The code that has been developed in "spring-commons-serializer" should be moved into a new "core.serializer" package (and the "commons" project should be removed).

This will also include the SerializingConverter and DeserializingConverter "adapter" implementations of the Converter interface (for Object->byte[] and byte[]->Object respectively).

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Referenced from: commits c046419