Added testing project, and moved solution file

.gitignore

AuthenticationMicroservice.Tests/AuthServiceTests.cs

...icroservice.Tests/AuthenticationMicroservice.Tests.csproj

AuthenticationMicroservice.Tests/Helpers/AutoMapperHelper.cs

AuthenticationMicroservice.Tests/Helpers/DbContextHelper.cs

AuthenticationMicroservice.Tests/Usings.cs

AuthenticationMicroservice.sln

AuthenticationMicroservice/.dockerignore

AuthenticationMicroservice/AuthenticationMicroservice.csproj

AuthenticationMicroservice/AutoMapperProfile.cs

AuthenticationMicroservice/Constants.cs

...ationMicroservice/Controllers/AuthenticationController.cs

...cationMicroservice/Controllers/AuthorizeRolesAttribute.cs

...nMicroservice/Controllers/BaseAuthenticationController.cs

AuthenticationMicroservice/Controllers/BaseController.cs

AuthenticationMicroservice/Dockerfile

...icationMicroservice/Exceptions/AuthenticationException.cs

AuthenticationMicroservice/Helpers/EmailHelper.cs

...enticationMicroservice/Helpers/ResponseOperationFilter.cs

AuthenticationMicroservice/Helpers/SecurityHelper.cs