Max and Group by tests

Test max for different SQL providers

To start

dotnet watch run

API URLs

curl localhost:5005/api/max/1

curl localhost:5005/api/group/1

dotnet ef database drop --context=LiteContext

dotnet ef database drop --context=PostgreContext

Name		Name	Last commit message	Last commit date
Latest commit History 4 Commits
.vscode		.vscode
MaxTest		MaxTest
.gitignore		.gitignore
MaxTest.sln		MaxTest.sln
README.md		README.md