Update owned entity guidance to explicitly call out that they don't work like value objects

[douglasg14b]

Guide: https://docs.microsoft.com/en-us/dotnet/architecture/microservices/microservice-ddd-cqrs-patterns/implement-value-objects#persist-value-objects-as-owned-entity-types-in-ef-core-20

There is information relating to Owned Entities in EF Core included in this Value Object guide that does not exist on the Owned Entities document. Largely the Persist value objects as owned entity types in EF Core 2.0 section.

Similarly shouldn't this document point out the relation to DDD Value Objects with a link to the guide or maybe even merging them?

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Document Details

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• ID: d02e6748-42e0-000a-4945-42cd05a0b875
• Version Independent ID: e3effbd0-07f2-423d-4032-1722e75adb37
• Content: Owned Entity Types - EF Core
• Content Source: entity-framework/core/modeling/owned-entities.md
• Product: entity-framework
• Technology: entity-framework-core
• GitHub Login: @AndriySvyryd
• Microsoft Alias: ansvyryd