Restructured eager loading tests and fixed two bugs#882

Merged

maurei merged 3 commits intojson-api-dotnet:masterfrom

bart-degreed:fix-eagerloads

Nov 19, 2020

Commits on Nov 18, 2020

Restructured eager loading tests and fixed two bugs:
Bart Koelman
committed
Updated test to set calculated property that depends on required relationship
Bart Koelman
committed

Commits on Nov 19, 2020

Improved handling for non-loaded related entities.
Bart Koelman
committed