Printer File Manager

I couldn't find a file manager to easily create/delete files on the QLn320 mobile printer I picked up for development, so I made one.

It works with IP, Bluetooth/Serial, and USB interfaces, and has no dependencies to install.

It does not require Zebra drivers to be installed for any connection method.

At this point, there are no binaries, but that could change. It should build easily in Visual Studio, as the only dependencies are a few NuGet packages.