Merge base master branche

Entity Resource Separation (2.4.0-beta3)

Should consider creating a new API on the graph that is more intuitive and doesn't require both steps.

Fix/#354: Null reference exception when fetching relationships with compound name

Fix/#340: Operations issues

Merge to latest version

Not In Filter

doc(Identifiable): add xml docs

Add 'GetPublicAttributeName' to Context Graph

Validations Send source.pointer

Feature/#39 - Acceptance Tests

Additional filter operations: isnull and isnotnull

…-deserializer-unit-test

Feature/#39 deserializer unit test

…-serializer-unit-test

Feature/#39 serializer unit test

[WIP] Feat/#39: Deeply Nested Inclusions

fix(Identifiable): handle null id values

fix(#347): parallel tests were stomping each other

fix(#394): register shorthand service types during discovery

Remove `DocumentData`, instead use `ResourceObject`

Fix/ci tests not running

Feat/#293: Naming Conventions, Improvements to AutoDiscovery, and ResourceDefinition