Implement Include/ThenInclude as adapter#188

Merged

fiseni merged 6 commits intoardalis:mainfrom

devbased:include-adapter

Dec 21, 2021

Commits on Dec 18, 2021

Commits on Dec 19, 2021

Add test case to cover situation when Include reference type (not a collection) with ThenInclude reference|collection; add comments to show what constructed expression trees represent
devbased
committed
Minor cleanup
devbased
committed

Commits on Dec 20, 2021

Update 'ReturnsStoreWithCompanyAndCountryAndStoresForCompany_GivenStoreByIdIncludeCompanyAndCountryAndStoresForCompanySpec' test for more complex include scenario; add it to EF6
devbased
committed