Add some dnn 7.x files that might be useful for unit testing and mocking.
Enhance the git ignore to ignore nested /bin /obj folder now we have added nunit project.
Remove the redundant search Interface
Remove a depreciated DNN Method
Removed DNN depreciated Email property.
Remove a depreciated DNN locale code with a shared method.
Remove a depreciated DNN Folder permission setting method
Replace depreciated DNN Method with new method.
Updated the module security to remove depreciated DNN methods.
Replace Depreciated DNN methods with core .net FileStream code.
Update depreciated DNN methods.
Upgrade of DNN Methods to v7+ code.
Changed the image file generation to use .net core File Stream methods.
Add Dependency Injection (DI) for the product search codebase to make it easier to unit test.