* Reorganize tests into unit/integration pattern
* Make DbSets virtual so they can be overridden by tests
* Add MessageControllerTests
* Implement DigestMiddlewareTests
* Refactor SMTPHelper to follow DI pattern which allows for mocking in unit tests.
* Fix MailQueueService service registration and shutdown
* Implement tests for Status and StatisticsController and reorganize tests
* Start working on UserControllerTests
* Start refactoring tests to use In-Memory EF provider
* Refactor integration tests to reset the database every time
Change default unit testing database credentials
* Update credentials to use default root with different passwords
* Throw exception when integration db is not available instead of falling back to in-memory
* Evaluate DbConnected every time
* Remove default DbContext constructor
* Setup DbContexts with options builder
* Convert remaining Moq DbContexts to InMemory ones
* Add more tests and use Assert.IsType for testing status code
* Add collection attribute to LighthouseServerTest
* Remove unused directives and calculate digest in tests
* Fix digest calculation in tests
* Add test database call
* Clear rooms after each test
* Fix CommentControllerTests.cs
* Disable test parallelization for gameserver tests
* Fix failing tests
Fix SlotTests
Make CreateUser actually add user to database
Fix dbConnected Lazy and change expected status codes
Properly Remove fragment from url for digest calculation
Fix digest calculation for regular requests
[skip ci] Remove unused directive
Don't use Database CreateUser function
Get rid of userId argument for generating random user
Rewrite logic for generating random users
Fix integration tests
* Implement changes from self-code review
* Fix registration tests
* Replace MailQueueService usages with IMailService
* Start of reorganization and cleanup
* Remove duplicate title id
* Refactor types
* Fix Release building
* Move classes in /Types to a Types namespace
* Fix compilation error (RoomVisualizerPage strikes again)
* Fix bugs created from auto merge
* Fix auto-merge compilation error
* Changes from review/fix failed merge
