WIF: Implemented #9
Updated BasePageRepository
- Changed GetQueryForMultipleTypes to virtual for testing
Added BasePageRepositoryTests
- Initial unit tests
Updated SiteContextService
- Changed IsPreviewEnabled to virtual for testing
UpdatedProcessdFileTests, UploadedFileTests, RepositoryServicesTests, SiteContextServicesTests
- added using to AutoMock
Updated KenticoUnitTestBase
- added SiteInfo as public