added projects to solution to follow Jeffrey Palermo's Onion Architecture simple approach having Core, Infrastructure, Tests, and UI projects.
added gitignore and readme to sln to access within sln itself. updated readme with some initial comments
enabled nuget package restore in the solution
updated existing nuget packages in solution before adding any new ones
added all initial nuget packages that I anticipate to use in this project. updated readme file to inidcate which nuget packages are being used
added project references for onion architecture
added log4net nuget package
added Entity Framework Nuget package
updated readme
#1; created user models, interfaces, repository, and started tests for user.