One Interface

A readme has been added to the project.

Instead of each operation having it's own UI the program now has 1 UI (MainInterface.cs). This interface supports "New", "Open", "Save" and "Quit" as well as showing an infobox listing contributors to the project. Also from this interface you can launch any of the image processors.

I have created an interface (IBitmapTransform.cs) which describes the image processors, and refactored every image process to conform to this interface. Basically any of the image processes can now be activated in the same way, no matter what it does. More details are given in README.md