v1.0 Release

Abysmal coding, but does what I want. Windows build has 2 detections on VirusTotal from no name anti-viruses. Not sure why, there's not much here. The project is really easy to open in Visual Studio and to build yourself, so I encourage it if you're weary.

Allows selection of multiple AVF files at once, and exports them immediately after selecting the files, rendering the "Extract All" button a remnant that I'm fearful to remove because of errors that I won't know how to fix.