Removed Autofac libraries as they are unused
Added NSubstitute to project
DB modifications, added tests and code refactoring
IOC Service Locator + tests
Merge branch 'master' of https://github.com/karol1990/FileServerProject

Conflicts:
	FileServerSystem/FileServerSystem - Server/App_Data/FileServerDB.mdf
	FileServerSystem/FileServerSystem - Server/App_Data/FileServerDB_log.ldf